Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. It presents in primary, secondary, latent, and tertiary stages with varying signs and symptoms. It can infect multiple organ systems if left untreated, potentially causing serious complications. Diagnosis is usually made through blood tests detecting antibodies, though microscopy can also identify the bacteria. Syphilis remains a global health issue, with rates of infections increasing in recent decades.
Presentation1.pptx, radiological imaging of sarcoidosis.Abdellah Nazeer
Sarcoidosis is an inflammatory disease characterized by non-caseating granulomas that can affect multiple organs. Pulmonary involvement occurs in up to 90% of patients and includes lymph node enlargement, micronodules with a perilymphatic distribution, fibrotic changes, and bilateral perihilar opacities. Extrapulmonary involvement such as skin and eye lesions is present in 25% of cases. HRCT is useful for evaluating the pulmonary manifestations which can vary significantly between patients.
Imaging findings of metabolic bone diseases Pankaj Kaira
This document discusses various metabolic bone diseases including osteoporosis, rickets, osteomalacia, and others. It provides details on:
- The definition and causes of osteoporosis as well as how it leads to loss of horizontal trabecular bone.
- The differences between rickets, which affects growth plates, and osteomalacia, which affects mineralization of bone. Causes include vitamin D deficiency and other disorders.
- Features of various other metabolic bone diseases like hypophosphatasia, hyperparathyroidism, and their effects on bone structure and mineralization.
Sarcoidosis is a systemic granulomatous disease of unknown origin characterized by non-caseating granulomas that commonly affect the lungs. Pulmonary manifestations are present in 90% of patients and include bilateral hilar lymphadenopathy and pulmonary infiltrates. While two thirds of patients experience remission within ten years, one third have progressive disease that can lead to pulmonary fibrosis and, in rare cases, death. Computed tomography is more sensitive than chest x-rays in detecting lymph node enlargement and lung abnormalities associated with sarcoidosis.
This document provides an overview of musculoskeletal arthritis, focusing on degenerative arthritis (osteoarthritis). It discusses the general features of arthritis, then covers osteoarthritis in more detail including types, radiographic features, incidence in different joints, and related conditions like erosive osteoarthritis, degenerative disc disease, spondylosis deformans, and diffuse idiopathic skeletal hyperostosis. Radiographic images are provided to illustrate findings.
This document discusses imaging findings in various neurocutaneous syndromes. It begins with an introduction to neurocutaneous syndromes as multisystem disorders involving the ectoderm. Several specific syndromes are then discussed in more detail, including their diagnostic criteria and common neuroimaging findings. Neurofibromatosis Type 1, Neurofibromatosis Type 2, Sturge-Weber syndrome, and Dyke-Davidoff-Masson syndrome are some of the syndromes covered. For each, characteristic lesions, abnormalities, and imaging appearances are described. Examples of imaging findings from case studies are also presented.
The document discusses various central nervous system infections, how they can be classified, their routes of entry and imaging appearances. It covers congenital infections including TORCH infections, acquired pyogenic infections such as meningitis, abscesses and ventriculitis. It also discusses viral, parasitic and fungal infections of the CNS. For each type of infection, the causative pathogens, locations, presentations and characteristic imaging findings are outlined.
Presentation1, radiological imaging of corpus callosum lesios.Abdellah Nazeer
1. The corpus callosum is commonly involved by lesions from various etiologies including congenital abnormalities, demyelination, infection, leukodystrophy, neoplasms, trauma, and vascular causes.
2. Transient lesions of the splenium are often seen in association with epilepsy, antiepileptic drug changes, infections, electrolyte imbalances, and PRES. They typically appear hyperintense on T2/FLAIR and DWI with restricted diffusion resolving within 1 month.
3. Common neoplasms involving the corpus callosum include glioblastoma, which may appear as a "butterfly" lesion crossing the genu, and primary CNS lymphoma presenting with a similar pattern
Presentation1.pptx, radiological imaging of sarcoidosis.Abdellah Nazeer
Sarcoidosis is an inflammatory disease characterized by non-caseating granulomas that can affect multiple organs. Pulmonary involvement occurs in up to 90% of patients and includes lymph node enlargement, micronodules with a perilymphatic distribution, fibrotic changes, and bilateral perihilar opacities. Extrapulmonary involvement such as skin and eye lesions is present in 25% of cases. HRCT is useful for evaluating the pulmonary manifestations which can vary significantly between patients.
Imaging findings of metabolic bone diseases Pankaj Kaira
This document discusses various metabolic bone diseases including osteoporosis, rickets, osteomalacia, and others. It provides details on:
- The definition and causes of osteoporosis as well as how it leads to loss of horizontal trabecular bone.
- The differences between rickets, which affects growth plates, and osteomalacia, which affects mineralization of bone. Causes include vitamin D deficiency and other disorders.
- Features of various other metabolic bone diseases like hypophosphatasia, hyperparathyroidism, and their effects on bone structure and mineralization.
Sarcoidosis is a systemic granulomatous disease of unknown origin characterized by non-caseating granulomas that commonly affect the lungs. Pulmonary manifestations are present in 90% of patients and include bilateral hilar lymphadenopathy and pulmonary infiltrates. While two thirds of patients experience remission within ten years, one third have progressive disease that can lead to pulmonary fibrosis and, in rare cases, death. Computed tomography is more sensitive than chest x-rays in detecting lymph node enlargement and lung abnormalities associated with sarcoidosis.
This document provides an overview of musculoskeletal arthritis, focusing on degenerative arthritis (osteoarthritis). It discusses the general features of arthritis, then covers osteoarthritis in more detail including types, radiographic features, incidence in different joints, and related conditions like erosive osteoarthritis, degenerative disc disease, spondylosis deformans, and diffuse idiopathic skeletal hyperostosis. Radiographic images are provided to illustrate findings.
This document discusses imaging findings in various neurocutaneous syndromes. It begins with an introduction to neurocutaneous syndromes as multisystem disorders involving the ectoderm. Several specific syndromes are then discussed in more detail, including their diagnostic criteria and common neuroimaging findings. Neurofibromatosis Type 1, Neurofibromatosis Type 2, Sturge-Weber syndrome, and Dyke-Davidoff-Masson syndrome are some of the syndromes covered. For each, characteristic lesions, abnormalities, and imaging appearances are described. Examples of imaging findings from case studies are also presented.
The document discusses various central nervous system infections, how they can be classified, their routes of entry and imaging appearances. It covers congenital infections including TORCH infections, acquired pyogenic infections such as meningitis, abscesses and ventriculitis. It also discusses viral, parasitic and fungal infections of the CNS. For each type of infection, the causative pathogens, locations, presentations and characteristic imaging findings are outlined.
Presentation1, radiological imaging of corpus callosum lesios.Abdellah Nazeer
1. The corpus callosum is commonly involved by lesions from various etiologies including congenital abnormalities, demyelination, infection, leukodystrophy, neoplasms, trauma, and vascular causes.
2. Transient lesions of the splenium are often seen in association with epilepsy, antiepileptic drug changes, infections, electrolyte imbalances, and PRES. They typically appear hyperintense on T2/FLAIR and DWI with restricted diffusion resolving within 1 month.
3. Common neoplasms involving the corpus callosum include glioblastoma, which may appear as a "butterfly" lesion crossing the genu, and primary CNS lymphoma presenting with a similar pattern
Skeletal dysplasia musculoskeletal radiology is very concise and it cover the all-important topic of skeletal dysplasia with their characteristic feature and radiological findings with a proper radiographic image. Starting from classification and approach. It includes nosology classification. Thanks.
1. The document describes various gastrointestinal and musculoskeletal conditions seen on imaging. It includes descriptions of total colonic aganglionosis, retroperitoneal fibrosis, pectus excavatum, Reiter's syndrome, median arcuate ligament syndrome, and Haglund syndrome among others.
2. The conditions are described and key radiographic findings are highlighted, such as the displacement and tapering of ureters seen in retroperitoneal fibrosis. Common presentations, classifications, and distinguishing radiologic features are summarized for each condition.
3. Different imaging modalities are discussed, with CT and MRI findings provided where relevant to demonstrate characteristics of the various diseases and injuries.
This document summarizes the radiographic manifestations of renal tuberculosis. It describes how tuberculosis can involve the renal parenchyma and collecting system, causing pyelonephritis or pseudotumoral lesions on imaging. Imaging findings vary depending on disease stage but can include papillary necrosis, strictures, hydronephrosis, mural thickening and calcifications. Plain films may demonstrate triangular calcifications in papillary necrosis or amorphous dystrophic calcifications in end-stage disease. Intravenous urography is sensitive for detecting lesions and complications like reflux or fistulas. Ultrasound, CT and MRI are also used to characterize lesions and assess extent of involvement.
This document summarizes several congenital pulmonary abnormalities:
1. Bronchopulmonary foregut malformations include congenital cystic adenomatoid malformation (CCAM), pulmonary sequestration, and foregut duplication cysts. CCAM appears as multiple cysts on imaging and can cause respiratory distress. Pulmonary sequestration involves aberrant lung tissue with a systemic blood supply.
2. Other abnormalities discussed include congenital lobar emphysema, pulmonary underdevelopment, Scimitar syndrome, bronchial atresia, congenital diaphragmatic hernia, and Kartagener’s syndrome. Each condition has specific radiographic features and clinical presentations.
This document contains 22 radiology case spots describing various pathologies. For each spot, the document provides a brief description of the imaging findings and diagnosis. The cases cover a wide range of topics including musculoskeletal, chest, neurologic, breast and vascular pathologies. Differential diagnoses are also provided for some cases to aid in arriving at the correct diagnosis.
radiological features of Mucopolysaccharidosesvik28
This document summarizes the imaging findings in mucopolysaccharidoses (MPS). It describes abnormalities seen in the skeletal system including dysostosis multiplex, thickened skull bones, abnormal sella turcica shape, and abnormalities in the spine, ribs, pelvis and long bones. It also describes brain abnormalities such as white matter lesions, perivascular space enlargement and brain atrophy. Other findings discussed include otitis media, airway obstruction, corneal clouding and joint abnormalities. The purpose is to evaluate the common radiological manifestations of MPS to aid in diagnosis.
Presentation1.pptx, radiological imaging of uterine cervix diseases.Abdellah Nazeer
This document discusses radiological imaging techniques for evaluating diseases of the uterine cervix. It begins by describing the anatomy of the cervix and then discusses various imaging modalities like CT, MRI, ultrasound and PET scans. It explains how these modalities are used to diagnose and stage cervical cancers as well as other cervical conditions like infections, polyps and endometriosis. The document concludes that while MRI is essential for evaluating cervical lesions, the findings must be interpreted in the clinical context to make an accurate diagnosis.
This document discusses the different types of arthritis, including degenerative, inflammatory, metabolic, infectious, and connective tissue arthritis. It provides details on osteoarthritis, rheumatoid arthritis, and juvenile rheumatoid arthritis. For osteoarthritis, it describes the typical radiographic findings of joint space narrowing, osteophyte formation, and subchondral sclerosis. For rheumatoid arthritis, it outlines the autoimmune pathology and notes the early signs of symmetric joint swelling and erosions seen on x-ray.
This document discusses bone marrow diseases, including malignant infiltration, secondary marrow hyperplasia, and lysosomal storage diseases. Specific diseases covered include multiple myeloma, leukemia, sickle cell anemia, thalassemia, Gaucher's disease, and Niemann-Pick disease. For each, the document discusses incidence, radiographic manifestations, and differential diagnosis. Radiographic findings include bone marrow hyperplasia, osteopenia, bone infarcts, vertebral compression fractures, and organomegaly of the spleen and liver. The goal is to understand the disease processes and radiologic presentations to aid in successful patient management.
Radiodiagnosis of salivary gland tumoursPankaj Kaira
The document discusses salivary gland tumors and their radiological evaluation. It describes the major and minor salivary glands and their drainage pathways. Common benign tumors include pleomorphic adenoma, which appears as a well-defined, lobulated, heterogeneous mass on imaging. Malignant tumors include mucoepidermoid carcinoma and adenoid cystic carcinoma. Imaging modalities like ultrasound, sialography, CT, MRI and PET are used to identify, characterize and stage salivary gland tumors.
The document discusses the radiological findings of tuberculosis based on 7 patient case presentations. It summarizes common findings seen on chest x-rays such as miliary shadows, cavities, consolidation, lymphadenopathy, pleural effusions and changes. Specific findings are described for different stages of TB including primary infection, post-primary infection, and complications such as tuberculoma, pleural thickening and airway involvement. Radiological images are included to demonstrate various manifestations of pulmonary and pleural TB.
Presentation2, radiological imaging of phakomatosis.Abdellah Nazeer
Von Hippel-Lindau disease is characterized by the development of numerous benign and malignant tumors in different organs due to mutations in the VHL tumor suppressor gene. Common manifestations include renal cell carcinomas, renal cysts, pheochromocytomas, pancreatic cysts and tumors, retinal hemangioblastomas, and cerebellar hemangioblastomas. Patients may develop tumors in the kidneys, pancreas, liver, adrenal glands, and brain. The variety of lesions that can occur has led to the mnemonic "HIPPEL" to remember the key features of VHL disease.
Pulmonary embolism is a blockage of the pulmonary artery or its branches by material that has traveled from elsewhere in the body through the bloodstream. It is most commonly caused by deep vein thrombosis in the legs. Symptoms include dyspnea, chest pain, and cough. Risk factors include prolonged bed rest, cancer, oral contraceptives, and recent surgery or trauma. Diagnosis involves evaluating clinical probability and testing such as D-dimer, CT pulmonary angiography, ventilation-perfusion scanning, and pulmonary angiography. Treatment focuses on anticoagulation to prevent further clots.
Presentation1.pptx, radiological imaging of gout disease.Abdellah Nazeer
This document summarizes the radiological imaging findings of gout. It describes how plain radiographs, ultrasound, CT, and MRI can be used to detect features of gout such as tophi, bone erosions, and synovitis. Plain radiographs are often normal in early disease but can detect chronic changes like tophi and erosions. Ultrasound is more sensitive for bone erosions and can detect changes earlier. CT and MRI allow visualization of tophi and can detect bone erosions and edema earlier than plain films. The document includes examples of imaging findings from different modalities.
This document discusses osteomyelitis, an infection of bone and bone marrow. It defines the different types (acute, subacute, chronic), describes the mechanisms of infection spread, common pathogens, and pathophysiology. Diagnosis involves clinical features, lab tests, and imaging modalities like radiography, CT, MRI, ultrasound and bone scanning. Radiographic findings at different stages and features of chronic osteomyelitis are also outlined.
1. The document discusses various patterns of diffuse lung lesions seen on imaging, including reticular interstitial, ground glass, nodular, cystic, and mosaic patterns.
2. It focuses on the reticular interstitial pattern, describing it as linear shadows appearing as a mesh or net. Common causes include idiopathic interstitial pneumonia, interstitial fibrosis, pulmonary edema, and conditions causing lymphangitis or interstitial infiltration.
3. Specific idiopathic interstitial pneumonias are discussed in detail, with their characteristic CT imaging findings and distributions described. These include usual interstitial pneumonia, nonspecific interstitial pneumonia, cryptogenic organizing pneumonia, respiratory
Presentation1.pptx, radiological imaging of skeletal dysplasiaAbdellah Nazeer
This document provides radiological images and descriptions of several skeletal dysplasias. It discusses conditions such as cleidocranial dysplasia, which can cause respiratory distress in newborns. Other conditions summarized include osteopoikilosis, mucopolysaccharidoses, multiple epiphyseal dysplasia, metaphyseal dysplasia, spondyloepiphyseal dysplasia, chondroectodermal dysplasia, achondroplasia, fibrous dysplasia, and dysplasia epiphysealis hemimelica. For each condition, the document highlights features visible in imaging and clinical symptoms.
Tuberculosis is caused by Mycobacterium tuberculosis and can manifest in active or latent forms. It is transmitted through airborne droplets when an infected person coughs or sneezes. There are three main types - primary TB occurs when the initial infection becomes active, post-primary TB occurs when latent TB reactivates, and latent TB occurs in 90% of infected individuals who never develop symptoms. Radiological findings can help diagnose and characterize TB types. Primary TB often shows lymphadenopathy, consolidation, pleural effusions or milliary nodules. Post-primary TB typically has cavitary lesions and upper lung involvement. Latent TB has fibrotic changes in the upper lungs.
Diagnostic Imaging of Congenital Central Nervous System DiseasesMohamed M.A. Zaitoun
This document provides an overview of congenital central nervous system diseases, including:
1. Neural tube closure defects such as anencephaly, Chiari malformations, and cephaloceles. Anencephaly is the most common neural tube defect and presents as absent brain tissue above the orbits.
2. Disorders of diverticulation and cleavage involving abnormalities such as dysgenesis of the corpus callosum. Dysgenesis can be complete or partial absence and is commonly associated with other CNS anomalies.
3. Posterior fossa malformations including Chiari malformations. Chiari I involves tonsillar herniation while Chiari II presents with herniation of brainstem and cerebell
The document discusses various stages and types of syphilis including neurosyphilis. It describes the typical early manifestations of congenital syphilis in infants as well as the four clinical types of neurosyphilis - asymptomatic neurosyphilis, meningovascular syphilis, general paresis, and tabes dorsalis. General paresis is a chronic dementia that results in death within 2-3 years and is characterized by personality changes, memory loss, and poor judgment. Tabes dorsalis affects the spinal cord and can cause an unsteady gait and sensory issues. Diagnosis of neurosyphilis involves lumbar puncture, CSF analysis, and various imaging and blood tests. Treatment is with pen
This document provides an overview of a syphilis curriculum, including:
1. The curriculum covers the epidemiology, pathogenesis, clinical manifestations, diagnosis, patient management, and prevention of syphilis.
2. Lessons include the disease epidemiology in the US, the pathogenesis of Treponema pallidum, clinical manifestations across all stages of syphilis, methods for diagnosis including serologic tests and microscopy, and prevention strategies.
3. The goal is for learners to understand all aspects of syphilis including transmission, population trends, microbiology, symptoms, testing, and treatment according to CDC guidelines.
Skeletal dysplasia musculoskeletal radiology is very concise and it cover the all-important topic of skeletal dysplasia with their characteristic feature and radiological findings with a proper radiographic image. Starting from classification and approach. It includes nosology classification. Thanks.
1. The document describes various gastrointestinal and musculoskeletal conditions seen on imaging. It includes descriptions of total colonic aganglionosis, retroperitoneal fibrosis, pectus excavatum, Reiter's syndrome, median arcuate ligament syndrome, and Haglund syndrome among others.
2. The conditions are described and key radiographic findings are highlighted, such as the displacement and tapering of ureters seen in retroperitoneal fibrosis. Common presentations, classifications, and distinguishing radiologic features are summarized for each condition.
3. Different imaging modalities are discussed, with CT and MRI findings provided where relevant to demonstrate characteristics of the various diseases and injuries.
This document summarizes the radiographic manifestations of renal tuberculosis. It describes how tuberculosis can involve the renal parenchyma and collecting system, causing pyelonephritis or pseudotumoral lesions on imaging. Imaging findings vary depending on disease stage but can include papillary necrosis, strictures, hydronephrosis, mural thickening and calcifications. Plain films may demonstrate triangular calcifications in papillary necrosis or amorphous dystrophic calcifications in end-stage disease. Intravenous urography is sensitive for detecting lesions and complications like reflux or fistulas. Ultrasound, CT and MRI are also used to characterize lesions and assess extent of involvement.
This document summarizes several congenital pulmonary abnormalities:
1. Bronchopulmonary foregut malformations include congenital cystic adenomatoid malformation (CCAM), pulmonary sequestration, and foregut duplication cysts. CCAM appears as multiple cysts on imaging and can cause respiratory distress. Pulmonary sequestration involves aberrant lung tissue with a systemic blood supply.
2. Other abnormalities discussed include congenital lobar emphysema, pulmonary underdevelopment, Scimitar syndrome, bronchial atresia, congenital diaphragmatic hernia, and Kartagener’s syndrome. Each condition has specific radiographic features and clinical presentations.
This document contains 22 radiology case spots describing various pathologies. For each spot, the document provides a brief description of the imaging findings and diagnosis. The cases cover a wide range of topics including musculoskeletal, chest, neurologic, breast and vascular pathologies. Differential diagnoses are also provided for some cases to aid in arriving at the correct diagnosis.
radiological features of Mucopolysaccharidosesvik28
This document summarizes the imaging findings in mucopolysaccharidoses (MPS). It describes abnormalities seen in the skeletal system including dysostosis multiplex, thickened skull bones, abnormal sella turcica shape, and abnormalities in the spine, ribs, pelvis and long bones. It also describes brain abnormalities such as white matter lesions, perivascular space enlargement and brain atrophy. Other findings discussed include otitis media, airway obstruction, corneal clouding and joint abnormalities. The purpose is to evaluate the common radiological manifestations of MPS to aid in diagnosis.
Presentation1.pptx, radiological imaging of uterine cervix diseases.Abdellah Nazeer
This document discusses radiological imaging techniques for evaluating diseases of the uterine cervix. It begins by describing the anatomy of the cervix and then discusses various imaging modalities like CT, MRI, ultrasound and PET scans. It explains how these modalities are used to diagnose and stage cervical cancers as well as other cervical conditions like infections, polyps and endometriosis. The document concludes that while MRI is essential for evaluating cervical lesions, the findings must be interpreted in the clinical context to make an accurate diagnosis.
This document discusses the different types of arthritis, including degenerative, inflammatory, metabolic, infectious, and connective tissue arthritis. It provides details on osteoarthritis, rheumatoid arthritis, and juvenile rheumatoid arthritis. For osteoarthritis, it describes the typical radiographic findings of joint space narrowing, osteophyte formation, and subchondral sclerosis. For rheumatoid arthritis, it outlines the autoimmune pathology and notes the early signs of symmetric joint swelling and erosions seen on x-ray.
This document discusses bone marrow diseases, including malignant infiltration, secondary marrow hyperplasia, and lysosomal storage diseases. Specific diseases covered include multiple myeloma, leukemia, sickle cell anemia, thalassemia, Gaucher's disease, and Niemann-Pick disease. For each, the document discusses incidence, radiographic manifestations, and differential diagnosis. Radiographic findings include bone marrow hyperplasia, osteopenia, bone infarcts, vertebral compression fractures, and organomegaly of the spleen and liver. The goal is to understand the disease processes and radiologic presentations to aid in successful patient management.
Radiodiagnosis of salivary gland tumoursPankaj Kaira
The document discusses salivary gland tumors and their radiological evaluation. It describes the major and minor salivary glands and their drainage pathways. Common benign tumors include pleomorphic adenoma, which appears as a well-defined, lobulated, heterogeneous mass on imaging. Malignant tumors include mucoepidermoid carcinoma and adenoid cystic carcinoma. Imaging modalities like ultrasound, sialography, CT, MRI and PET are used to identify, characterize and stage salivary gland tumors.
The document discusses the radiological findings of tuberculosis based on 7 patient case presentations. It summarizes common findings seen on chest x-rays such as miliary shadows, cavities, consolidation, lymphadenopathy, pleural effusions and changes. Specific findings are described for different stages of TB including primary infection, post-primary infection, and complications such as tuberculoma, pleural thickening and airway involvement. Radiological images are included to demonstrate various manifestations of pulmonary and pleural TB.
Presentation2, radiological imaging of phakomatosis.Abdellah Nazeer
Von Hippel-Lindau disease is characterized by the development of numerous benign and malignant tumors in different organs due to mutations in the VHL tumor suppressor gene. Common manifestations include renal cell carcinomas, renal cysts, pheochromocytomas, pancreatic cysts and tumors, retinal hemangioblastomas, and cerebellar hemangioblastomas. Patients may develop tumors in the kidneys, pancreas, liver, adrenal glands, and brain. The variety of lesions that can occur has led to the mnemonic "HIPPEL" to remember the key features of VHL disease.
Pulmonary embolism is a blockage of the pulmonary artery or its branches by material that has traveled from elsewhere in the body through the bloodstream. It is most commonly caused by deep vein thrombosis in the legs. Symptoms include dyspnea, chest pain, and cough. Risk factors include prolonged bed rest, cancer, oral contraceptives, and recent surgery or trauma. Diagnosis involves evaluating clinical probability and testing such as D-dimer, CT pulmonary angiography, ventilation-perfusion scanning, and pulmonary angiography. Treatment focuses on anticoagulation to prevent further clots.
Presentation1.pptx, radiological imaging of gout disease.Abdellah Nazeer
This document summarizes the radiological imaging findings of gout. It describes how plain radiographs, ultrasound, CT, and MRI can be used to detect features of gout such as tophi, bone erosions, and synovitis. Plain radiographs are often normal in early disease but can detect chronic changes like tophi and erosions. Ultrasound is more sensitive for bone erosions and can detect changes earlier. CT and MRI allow visualization of tophi and can detect bone erosions and edema earlier than plain films. The document includes examples of imaging findings from different modalities.
This document discusses osteomyelitis, an infection of bone and bone marrow. It defines the different types (acute, subacute, chronic), describes the mechanisms of infection spread, common pathogens, and pathophysiology. Diagnosis involves clinical features, lab tests, and imaging modalities like radiography, CT, MRI, ultrasound and bone scanning. Radiographic findings at different stages and features of chronic osteomyelitis are also outlined.
1. The document discusses various patterns of diffuse lung lesions seen on imaging, including reticular interstitial, ground glass, nodular, cystic, and mosaic patterns.
2. It focuses on the reticular interstitial pattern, describing it as linear shadows appearing as a mesh or net. Common causes include idiopathic interstitial pneumonia, interstitial fibrosis, pulmonary edema, and conditions causing lymphangitis or interstitial infiltration.
3. Specific idiopathic interstitial pneumonias are discussed in detail, with their characteristic CT imaging findings and distributions described. These include usual interstitial pneumonia, nonspecific interstitial pneumonia, cryptogenic organizing pneumonia, respiratory
Presentation1.pptx, radiological imaging of skeletal dysplasiaAbdellah Nazeer
This document provides radiological images and descriptions of several skeletal dysplasias. It discusses conditions such as cleidocranial dysplasia, which can cause respiratory distress in newborns. Other conditions summarized include osteopoikilosis, mucopolysaccharidoses, multiple epiphyseal dysplasia, metaphyseal dysplasia, spondyloepiphyseal dysplasia, chondroectodermal dysplasia, achondroplasia, fibrous dysplasia, and dysplasia epiphysealis hemimelica. For each condition, the document highlights features visible in imaging and clinical symptoms.
Tuberculosis is caused by Mycobacterium tuberculosis and can manifest in active or latent forms. It is transmitted through airborne droplets when an infected person coughs or sneezes. There are three main types - primary TB occurs when the initial infection becomes active, post-primary TB occurs when latent TB reactivates, and latent TB occurs in 90% of infected individuals who never develop symptoms. Radiological findings can help diagnose and characterize TB types. Primary TB often shows lymphadenopathy, consolidation, pleural effusions or milliary nodules. Post-primary TB typically has cavitary lesions and upper lung involvement. Latent TB has fibrotic changes in the upper lungs.
Diagnostic Imaging of Congenital Central Nervous System DiseasesMohamed M.A. Zaitoun
This document provides an overview of congenital central nervous system diseases, including:
1. Neural tube closure defects such as anencephaly, Chiari malformations, and cephaloceles. Anencephaly is the most common neural tube defect and presents as absent brain tissue above the orbits.
2. Disorders of diverticulation and cleavage involving abnormalities such as dysgenesis of the corpus callosum. Dysgenesis can be complete or partial absence and is commonly associated with other CNS anomalies.
3. Posterior fossa malformations including Chiari malformations. Chiari I involves tonsillar herniation while Chiari II presents with herniation of brainstem and cerebell
The document discusses various stages and types of syphilis including neurosyphilis. It describes the typical early manifestations of congenital syphilis in infants as well as the four clinical types of neurosyphilis - asymptomatic neurosyphilis, meningovascular syphilis, general paresis, and tabes dorsalis. General paresis is a chronic dementia that results in death within 2-3 years and is characterized by personality changes, memory loss, and poor judgment. Tabes dorsalis affects the spinal cord and can cause an unsteady gait and sensory issues. Diagnosis of neurosyphilis involves lumbar puncture, CSF analysis, and various imaging and blood tests. Treatment is with pen
This document provides an overview of a syphilis curriculum, including:
1. The curriculum covers the epidemiology, pathogenesis, clinical manifestations, diagnosis, patient management, and prevention of syphilis.
2. Lessons include the disease epidemiology in the US, the pathogenesis of Treponema pallidum, clinical manifestations across all stages of syphilis, methods for diagnosis including serologic tests and microscopy, and prevention strategies.
3. The goal is for learners to understand all aspects of syphilis including transmission, population trends, microbiology, symptoms, testing, and treatment according to CDC guidelines.
Congenital syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum transmitted from mother to fetus. It can cause symptoms in the fetus and newborn ranging from rash, fever, bone abnormalities to long term complications affecting eyes, teeth, bones and nervous system if untreated. Diagnosis involves tests for syphilis in the mother and treatment with intravenous penicillin can prevent transmission if given before 18 weeks of pregnancy.
Syphilis is a contagious bacterial infection caused by Treponema pallidum that is transmitted through direct contact with a chancre sore, usually during sexual contact. It progresses through primary, secondary, latent, and tertiary stages if left untreated. Symptoms vary by stage but may include sores, rashes, and damage to internal organs over time. Diagnosis involves tests of fluids from sores, blood tests, and spinal taps. Treatment is with antibiotics but damage cannot be reversed. Prevention involves safe sex practices and regular testing to catch the infection early.
Presentation1.pptx, radiological imaging of extra nodal lymphoma.Abdellah Nazeer
This document discusses extranodal lymphoma, which refers to lymphomatous infiltration of sites other than lymph nodes. It provides examples of extranodal lymphoma in many organs and tissues throughout the body, as seen on various imaging modalities like CT, MRI, PET, and ultrasound. Extranodal lymphoma can mimic other diseases, so it should be considered in the differential diagnosis of mass lesions and focal abnormalities. Biopsy is often needed for definitive diagnosis.
1. Congenital syphilis occurs when the syphilis bacterium is transmitted from an infected mother to her fetus during pregnancy. It can cause a range of health problems in infected newborns and children.
2. Symptoms of early congenital syphilis in newborns include rashes, fever, swelling of the liver and spleen, and pneumonia. Late congenital syphilis symptoms appear after age 2 and include facial deformities, dental abnormalities, and neurological problems.
3. Treatment for congenital syphilis depends on factors like the infant's symptoms, physical exam results, and mother's treatment history. Aqueous penicillin is usually recommended for infants with confirmed disease,
This document discusses diagnostic tests for syphilis caused by the bacterium Treponema pallidum. It describes direct detection methods like darkfield microscopy and fluorescent antibody testing to visualize the bacterium in samples. It also covers non-treponemal tests that detect non-specific reagin antibodies like VDRL and RPR, and treponemal tests that detect antibodies specific to T. pallidum like FTA-ABS. The stages of syphilis and clinical manifestations are also briefly outlined.
Medical management of vestibular disorders and vestibular rehabilitationwebzforu
1. Vestibular disorders disrupt balance and cause dizziness through loss of function in the vestibular system.
2. Treatment involves symptomatic relief through medications and vestibular rehabilitation exercises to restore balance.
3. Common etiologies like vestibular neuritis and Meniere's disease are treated with anti-inflammatory steroids and diuretics respectively, while BPPV often responds to repositioning maneuvers to move debris in semicircular canals.
Syphilis co-infection among persons living with HIV infection in Shelby Count...CDC NPIN
This document describes a study of syphilis co-infection among people living with HIV in Shelby County, Tennessee between 2006-2009. The study found that 377 cases of co-infection were identified through linking HIV and syphilis surveillance data. 36% were concurrently diagnosed, 58% were diagnosed with HIV first, and 6% were diagnosed with syphilis first. Males, Black individuals, MSM, ages 13-29, and those diagnosed in public/correctional facilities had higher rates of co-infection. The results indicate continued risky sexual behaviors and a need for targeted prevention interventions.
This document discusses cardiovascular syphilis, which can affect the heart, aorta and other blood vessels. It outlines the epidemiology, clinical features, investigations, treatment, prognosis and follow up for cardiovascular syphilis. While rare today due to penicillin treatment, syphilis can cause complications like aortic aneurysms in the heart, aorta and other large blood vessels up to 40 years after initial infection. Proper treatment and follow up is important as untreated syphilitic aneurysms have a high 2-year mortality rate.
Diffusion tensor imaging (DTI) uses fiber tracking to map the course of fiber tracts in the brain such as the corticospinal tract. DTI fiber tracks can reveal the path of motor fibers as they descend from the cortex through the internal capsule and cerebral peduncle, and how fibers may twist around each other. This information helps visualize the location of fiber tracts near brain tumors and can provide clinically useful guidance for surgical planning and procedures.
This document discusses abdominal tuberculosis, specifically focusing on tuberculosis of the gastrointestinal tract. It covers the pathogenesis, clinical features, diagnosis, and treatment of abdominal tuberculosis. The key points are:
1) Abdominal tuberculosis most commonly involves the ileocaecal region and peritoneum. It typically spreads hematogenously from a primary pulmonary focus or via lymph nodes.
2) Common clinical features include abdominal pain, fever, weight loss, and abdominal swelling caused by ascites. Diagnostic tests include positive Mantoux test, ascitic fluid analysis, imaging, and biopsy showing caseating granulomas.
3) Treatment involves antitubercular therapy for at least 6 months along with surgery for complications like obstruction
This document discusses diseases of the inner ear. It begins with an overview of inner ear anatomy and how the body maintains balance. Key points include that balance involves input from the vestibular, visual, and somatosensory systems. Common causes of inner ear diseases include infections, tumors, trauma, autoimmune disorders, and degenerative conditions like Meniere's disease and benign paroxysmal positional vertigo. Specific inner ear disorders like vestibular neuritis and traumatic temporal bone fractures are also summarized.
This document presents a case of congenital syphilis in a female infant admitted at 1 month of age with bilateral lower limb swelling and redness. The document then provides background information on congenital syphilis including its epidemiology, clinical manifestations, diagnosis and management. It discusses challenges in diagnosis and follow up in resource-limited settings. The case presentation is used to highlight investigations performed and management with penicillin. Follow-up and challenges in Rwanda are also discussed.
The document summarizes Hamilton County's ongoing syphilis epidemic. It finds that 80% of syphilis cases are among African Americans, with the majority of cases being young people ages 15-34. Despite efforts to increase syphilis screening and testing, as well as community outreach campaigns, the county continues to see congenital syphilis cases. Moving forward, the health department aims to further coordinate with healthcare providers, evaluate the root causes of congenital cases, and continue community education efforts with the goals of reducing overall syphilis rates and achieving zero congenital syphilis cases by 2014.
This document discusses typhoid and syphilis. It begins by presenting a case scenario of a man experiencing abdominal pain, nausea, vomiting and fever who may have typhoid fever based on his recent consumption of undercooked eggs. It then provides details on the pathogenesis, clinical features, investigations and treatment of typhoid fever. The document also presents a case of a man with a penile sore and lymphadenopathy who is diagnosed with primary syphilis. It outlines the stages, signs and symptoms, histology, and management of syphilis.
Abdominal tuberculosis by dr waseem ashraf skimsDr Waseem Ashraf
1. Abdominal tuberculosis is a common extrapulmonary manifestation of tuberculosis that most commonly involves the intestines, peritoneum, and lymph nodes.
2. Diagnosis is challenging as symptoms and imaging findings can overlap with other diseases like Crohn's disease. Imaging may show lymphadenopathy, thickening of the bowel wall, ascites, and mesenteric involvement.
3. While no blood test is diagnostic, elevated ESR, anemia, and a positive tuberculin skin test provide supportive evidence for abdominal tuberculosis. Definitive diagnosis often requires biopsy and culture of the affected tissue.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. It has four stages - primary, secondary, latent, and tertiary. It is most commonly spread through sexual activity but can also be transmitted from mother to baby. Diagnosis involves blood tests and microscopy. While treatable with antibiotics, syphilis remains a global health problem.
Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum. It has various stages including primary, secondary, latent, and tertiary syphilis. Primary syphilis involves a painless sore or ulcer called a chancre, usually in the genital area. Secondary syphilis causes a rash on the body and mucous membranes. Latent syphilis has no symptoms but can be detected through blood tests. Tertiary syphilis can damage internal organs if left untreated.
Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum. It has several stages including primary, secondary, latent, and tertiary syphilis. Primary syphilis presents as a painless chancre 1-3 weeks after infection. Secondary syphilis occurs 1-6 months later and involves a rash, fever, and mucous patches. Latent syphilis involves no symptoms but positive blood tests, and can last years. Tertiary syphilis damages internal organs if untreated and can cause blindness, deafness, or paralysis. Congenital syphilis is transmitted from mother to child during pregnancy or birth and can cause deformities or death of the baby if
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This PowerPoint presentation was compiled and prepared by Platon S. Plakar, Jr a student majoring in Physician Assistant at Cuttington University. This presentation provides a brief understanding of Syphilis, an infectious disease condition that affects people exposed to sexual contact.
This document provides information about syphilis, including:
1. Syphilis is a chronic infection caused by the bacterium Treponema pallidum that is transmitted sexually or congenitally.
2. Primary syphilis presents as a chancre on the genitals or mouth. Secondary syphilis causes a rash and mucous membrane lesions. Tertiary syphilis can damage internal organs if left untreated.
3. Diagnosis involves darkfield microscopy of lesions, serological tests like RPR and FTA-Abs, and PCR. Treatment is with penicillin. Counseling involves educating patients about transmission risks and screening of partners.
Syphilis is a sexually transmitted disease caused by the spirochete Treponema pallidum. It has four stages - primary, secondary, latent, and tertiary - and can cause lesions, rashes, and long-term damage if untreated. It is diagnosed through direct visualization of spirochetes or serological tests. Treatment involves penicillin, doxycycline, or tetracycline depending on the stage of disease. Syphilis can also be transmitted from mother to child during pregnancy or childbirth, potentially causing fetal death or lifelong infections.
Syphilis is caused by the bacterium Treponema pallidum and is transmitted sexually, from mother to fetus, or rarely through other means. It progresses through primary, secondary, latent, and tertiary stages if left untreated. Primary syphilis presents as a painless chancre at the infection site while secondary syphilis causes a rash, fever, and mucous patches. Latent syphilis involves positive blood tests without symptoms. Tertiary syphilis can damage internal organs. Treatment involves penicillin or alternatives like doxycycline for non-pregnant patients and higher dose penicillin for pregnant patients and congenital cases.
Syphilis is caused by the bacterium Treponema pallidum and is transmitted sexually, from mother to fetus, or rarely by other means. It progresses through primary, secondary, latent, and late stages if left untreated. Primary syphilis presents as a chancre which can spread to nearby lymph nodes. Secondary syphilis causes a rash and mucous membrane lesions. Latent syphilis involves positive blood tests without symptoms. Late syphilis can damage internal organs like the heart, brain, and skin in the form of gummas. Syphilis screening and treatment are important to prevent transmission and complications. Congenital syphilis is transmitted from mother to fetus and can cause serious lifelong effects if
This document discusses syphilis, a bacterial infection caused by Treponema pallidum. It begins by describing the etiology, epidemiology, signs and symptoms, and laboratory evaluation of syphilis. It then discusses the stages of syphilis in more detail, including primary, secondary, latent, tertiary, and congenital syphilis. The stages are characterized by different clinical manifestations such as chancres, rashes, neurological symptoms, and cardiovascular involvement. The document also covers the pathology of syphilis, its transmission routes, relationship to HIV, and laboratory tests for diagnosis.
Syphilis is caused by the bacterium Treponema pallidum. It has various stages including primary, secondary, latent, and tertiary syphilis. Primary syphilis involves a painless sore called a chancre, secondary syphilis presents with a rash and other symptoms affecting multiple organ systems, and latent and tertiary syphilis can cause long term damage if left untreated. Penicillin is the treatment of choice and works against all stages of syphilis.
Syphilis is a bacterial sexually transmitted infection that can cause serious health problems if left untreated. It has multiple stages, starting with a chancre or sore, followed by rashes and flu-like symptoms in the secondary stage. Without treatment, later stages can affect the heart, brain, and other organs. Syphilis is most common among those aged 15-39 and can be passed from mother to baby during pregnancy, potentially resulting in stillbirth or deformities. It is prevented through safe sex practices like condoms and being in a mutually monogamous relationship.
The document discusses several ulcerative sexually transmitted infections (STIs), including genital herpes, syphilis, chancroid, lymphogranuloma venereum, and granuloma inguinale. For each STI, it provides information on the causative pathogen, pathogenesis, epidemiology, clinical presentation, diagnostic workup, management, and prognosis. The document aims to give healthcare providers a comprehensive overview of these important ulcerative STIs.
This document discusses syphilis, a sexually transmitted disease caused by the spirochete Treponema pallidum. It defines syphilis and describes the causative organism. It discusses the modes of transmission for acquired and congenital syphilis. The clinical stages of syphilis are outlined including primary, secondary, latent, and tertiary syphilis. The diagnosis, treatment, and prognosis of syphilis are summarized. Congenital syphilis is also described. References are provided.
Syphilis is a bacterial infection caused by Treponema pallidum that is primarily transmitted through sexual contact. It develops in stages, beginning with a chancre sore and progressing to rashes, fever, and lymph node swelling if left untreated. Without treatment, syphilis can spread to the heart, brain and other organs. It is diagnosed through blood tests and treated with antibiotics like penicillin. Untreated syphilis can cause serious long term complications or death.
Spirochetes ppt microbiology and immunologyNellyPhiri5
Treponema pallidum is a spirochete bacterium that causes syphilis. It is transmitted through direct contact with syphilitic sores during sexual activity or from mother to child in utero. Syphilis progresses through primary, secondary, latent, and tertiary stages if left untreated. Primary syphilis causes a painless sore called a chancre, while secondary syphilis features a rash and mucous membrane lesions. Late syphilis can result in damage to the nervous system, heart, or other organs. Syphilis is effectively treated with penicillin.
ORAL MANIFESTATIONS OF SYPHILIS-A reviewishita1994
Syphilis is an infectious disease of most extreme significance these days, which has made a rebound after the presence of AIDS.
It might introduce oral lesions in all stages.
A sharp information on its different oral signs is significant for appropriate determination and satisfactory treatment.
Infective syphilis is brought about by the anaerobic filamentous spirochete, Treponema pallidum.
Previously decade there has been a noteworthy ascent in the prevalence of infective syphilis in the created world.
Striking increments in the recurrence of syphilis have happened in Eastern Europe, and more modest ascents have been accounted for in Western Europe and the US.
This document provides information about bacteria and tuberculosis (TB). It begins by defining bacteria and describing their various shapes. It then discusses TB in more detail, noting that it is caused by Mycobacterium tuberculosis bacteria. Signs and symptoms of TB infection are described, including fever, night sweats, and cough. Both pulmonary and extrapulmonary TB are discussed. Oral manifestations of primary and secondary TB are also summarized.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and tertiary).
Similar to Presentation1.pptx, radiological imaging of syphilis. (20)
This document discusses various pediatric musculoskeletal disorders and conditions that can affect the knee joint, as seen on imaging such as MRI and radiography. It covers developmental disorders like congenital absence of cruciate ligaments and discoid meniscus. It also discusses infectious diseases like osteomyelitis, inflammatory diseases such as pigmented villonodular synovitis, neoplastic conditions including benign tumors like osteochondroma and malignant tumors like osteosarcoma. A variety of imaging findings are presented for each condition.
Presentation1, Ultrasound of the bowel loops and the lymph nodes..pptxAbdellah Nazeer
Ultrasonography is used to examine the bowel loops and abdominal lymph nodes. It can detect various pathologies of the bowel including hypertrophic pyloric stenosis, duodenal hematoma, midgut volvulus, incarcerated inguinal hernia, Henoch Schönlein purpura, Crohn's disease, intussusception, and acute appendicitis. The ultrasound technique and appearance of these conditions are described along with images showing normal bowel anatomy for comparison. Specific features that help differentiate these pathologies are discussed.
This document contains 34 radiology case summaries. Case 1 describes a Salter-Harris type I ankle fracture with avulsion injury seen on X-ray. Case 2 describes bilateral triangle bone sclerosis of the iliac bones seen on pelvis X-ray and MRI in a patient with osteitis condensans ilii. Case 3 describes a Lisfranc fracture dislocation seen on foot X-ray.
This document contains multiple case studies and images related to soft tissue hemangiomas and neurofibromatosis. The cases demonstrate various imaging findings including: heterogeneous masses containing phleboliths characteristic of hemangiomas in muscle and soft tissue seen on X-ray and MRI; intramuscular hemangiomas appearing as well-circumscribed and hyperintense lesions on MRI; and neurofibromas appearing as plexiform masses showing atypical enhancement and causing skeletal abnormalities in neurofibromatosis type 1 and 2.
This document contains a list of over 80 medical conditions and diseases. It includes rare conditions like chondrodysplasia punctata, ranula, and lissencephaly as well as more common conditions like lipoma, adenomyosis, and osteosarcoma. The wide variety of medical topics covered suggests this list was intended as a study guide or reference for medical students or residents to test their knowledge of different pathologies.
Presentation1, radiological imaging of lateral hindfoot impingement.Abdellah Nazeer
This document discusses radiological imaging of lateral hindfoot impingement. It provides illustrations and images showing normal hindfoot anatomy as well as examples of talocalcaneal impingement, subfibular impingement, and combined impingement. MRI and CT images demonstrate bone marrow edema, cystic changes, sclerosis, and soft tissue swelling associated with impingement between the talus, calcaneus, and fibula. Measurements of hindfoot valgus angle are also shown on imaging to evaluate impingement and alignment. Case studies with patients presenting lateral ankle pain further demonstrate imaging findings of extra-articular hindfoot impingement.
Presentation2, radiological anatomy of the liver and spleen.Abdellah Nazeer
This document discusses the normal anatomy of the liver and spleen as seen on radiological CT scans. It describes the classic portal vein anatomy where the main portal vein bifurcates into right and left branches. It also shows images of variations in the arterial supply to segment IV of the liver, which can arise from either the left or right hepatic artery. Finally, it mentions examining the anatomy of the spleen but does not provide any details.
Presentation1, artifacts and pitfalls of the wrist and elbow joints.Abdellah Nazeer
1) The document discusses various normal anatomical structures and imaging artifacts that can be mistaken for abnormalities in MRI of the wrist and elbow joints.
2) Specific examples mentioned include "pseudoerosions" of wrist bones that are actually intraosseous blood vessels, as well as pseudodefects of the capitellum and trochlear bones of the elbow that appear as interruptions of the cortical bone.
3) The document emphasizes that these pseudodefects should not be confused with osteochondral lesions, as they do not exhibit marrow edema and occur in different locations. It provides images to illustrate examples of these normal variants.
Presentation1, artifact and pitfalls of the knee, hip and ankle joints.Abdellah Nazeer
The document summarizes common artifacts and pitfalls seen on MRI of the knee, hip, and ankle joints that can be mistaken for pathology but are actually normal anatomical variants or imaging findings. Some examples provided include meniscofemoral ligaments in the knee that can mimic meniscal tears, transverse ligaments that can appear to disrupt the meniscus, and popliteal tendon sheaths that can resemble lesions. For the hip, examples given are synovial pits, os acetabuli, the transverse acetabular ligament, perilabral recesses, and intraosseous contrast tracks in the acetabulum. Proper identification requires knowledge of anatomy and correlation across imaging planes.
Presentation1, radiological imaging of artifact and pitfalls in shoulder join...Abdellah Nazeer
This document discusses various normal anatomical variations and artifacts that can be mistaken for pathology on shoulder MRI images. It describes variations that can be seen in tendons like the biceps and rotator cuff, ligaments, labral structures, bone structures, and bone marrow. Specifically, it notes variations in tendon bifurcation and vascular structures, subtle differences between tendons in the rotator cuff, variants of ligaments and labral structures like the sublabral foramen, and normal anatomical grooves and depressions in bones that should not be confused with defects or lesions. Positioning artifacts are also discussed. The document aims to help radiologists avoid misdiagnosing these normal variants as pathological conditions.
Presentation1, radiological imaging of internal abdominal hernia.Abdellah Nazeer
This document summarizes different types of internal abdominal hernias as seen on radiological imaging. It describes the clinical presentation, anatomy, and characteristic radiographic features of various internal hernia types including paraduodenal, pericecal, transmesenteric, lesser sac, broad ligament, supravesical, and Petersen hernias. Key radiographic findings include clusters of small bowel loops in atypical locations and displacement or compression of surrounding organs. Vascular landmarks help identify the specific hernia type.
Presentation11, radiological imaging of ovarian torsion.Abdellah Nazeer
Ovarian torsion refers to the twisting of an ovary on its vascular pedicle, which can cut off its blood supply. It is a gynecological emergency that requires urgent surgery. Radiological imaging plays an important role in the diagnosis. Ultrasound is usually the initial imaging method, showing signs such as an enlarged ovary without blood flow. CT and MRI can further evaluate for complications like hemorrhage or infarction. Prompt diagnosis and treatment are needed to prevent ovarian necrosis from the loss of blood supply.
This document provides an overview of musculoskeletal MRI anatomy of the knee, ankle, hip, elbow and shoulder joints. It describes the imaging planes used to study each joint and surrounding structures like ligaments, tendons, muscles and neurovascular elements. Key anatomic landmarks of the joints are identified on MRI in different planes. Normal appearances of tissues like cartilage, bone and synovial fluid are also outlined.
Presentation1, new mri techniques in the diagnosis and monitoring of multiple...Abdellah Nazeer
This document discusses new MRI techniques for diagnosing and monitoring multiple sclerosis (MS). It recommends protocols for baseline and follow-up brain and spinal cord MRIs, including mandatory and optional sequences. Advanced techniques like double inversion recovery, diffusion tensor imaging, and MR spectroscopy are highlighted for improving detection of gray matter lesions and diffuse white matter damage compared to conventional MRI. The document concludes that while conventional MRI is important for MS, advanced techniques provide higher sensitivity and specificity for both lesions and normal-appearing brain tissue, furthering understanding of MS pathophysiology.
Presentation1, radiological application of diffusion weighted mri in neck mas...Abdellah Nazeer
This document summarizes the potential applications of diffusion-weighted MRI in evaluating neck masses. It discusses how DWI can help differentiate between benign and malignant neck masses based on apparent diffusion coefficient (ADC) values. DWI is also useful for predicting and monitoring treatment response in head and neck tumors by detecting changes in ADC values before changes in tumor size. DWI can help distinguish tumor recurrence from post-treatment changes based on qualitative and quantitative ADC assessments. The document concludes that DWI shows promise for applications in head and neck oncology but larger multicenter studies are still needed.
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The document discusses the use of diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) values to characterize breast lesions. DWI was performed on 70 breast lesions which underwent biopsy. Malignant lesions showed lower ADC values than benign lesions. Using an ADC cutoff of 1.1×10^-3 mm2/s and normalized ADC ratio of 0.9 provided high sensitivity and specificity of 89.75% and 92.2% respectively in differentiating benign and malignant lesions. DWI is thus a potential adjunct to conventional breast MRI that can accurately characterize lesions.
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The document discusses the use of diffusion-weighted imaging (DWI) in abdominal and pelvic MRI. It finds that DWI improves lesion detection sensitivity, especially for metastases, and can help characterize lesions when gadolinium contrast is contraindicated. DWI provides quantitative tissue analysis without contrast and may help longitudinally assess tumor response to therapy. Given its merits and availability on most MRI systems, DWI should be considered a routine sequence in abdominal MRI protocols, particularly when contrast cannot be used.
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1) The document discusses the use of diffusion-weighted MRI in detecting areas of restricted diffusion in various neurological conditions and diseases. It provides examples of several conditions that appear bright on DWI imaging such as acute ischemic stroke, traumatic brain injuries, encephalitis, spinal cord ischemia, and arterial dissections.
2) Restricted diffusion occurs when there is a reduction in the normal random movement of water molecules within tissues, appearing as hyperintense signals on DWI images. This can be caused by cellular swelling, reduced extracellular space, or fragmentation of cellular components.
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Magnetic resonance imaging (MRI) was discovered in 1947 by two physicists and the first clinical images were obtained in 1977. MRI uses strong magnetic fields between 1-9 Tesla to align hydrogen atoms in the body and radio waves to elicit signals to form images. The document provides a brief history of MRI and discusses magnetic fields, relaxation processes, and pulse sequences used to generate MRI images.
2. Syphilis is a sexually transmitted infection caused by the spirochete bacterium
Treponema pallidum subspecies pallidum. The primary route of transmission is
through sexual contact ; it may also be transmitted from mother to fetus during
pregnancy or at birth, resulting in congenital syphilis .
The signs and symptoms of syphilis vary depending in which of the four stages it
presents (primary, secondary, latent, and tertiary). The primary stage classically
presents with a single chancre (a firm, painless, non-itchy skin ulceration),
secondary syphilis with a diffuse rash which frequently involves the palms of the
hands and soles of the feet, latent syphilis with little to no symptoms, and tertiary
syphilis with gummas , neurological, or cardiac symptoms. It has, however, been
known as "the great imitator " due to its frequent atypical presentations.
Diagnosis is usually made by using blood tests ; however, the bacteria can also be
detected using dark field microscopy .
Syphilis is thought to have infected 12 million additional people worldwide in
1999, with greater than 90% of cases in the developing world . After decreasing
dramatically since the widespread availability of penicillin in the 1940s, rates of
infection have increased since the turn of the millennium in many countries, often
in combination with human immunodeficiency virus (HIV). This has been
attributed partly to unsafe sexual practices among men who have sex with men ,
increased promiscuity , prostitution , and decreasing use of condoms.
3. Signs and symptoms:
Primary syphilis is typically acquired by direct sexual contact with the infectious lesions
of another person. Approximately 3 to 90 days after the initial exposure (average 21
days) a skin lesion, called a chancre , appears at the point of contact. This is classically
(40% of the time) a single, firm, painless, non-itchy skin ulceration with a clean base
and sharp borders between 0.3 and 3.0 cm in size. The lesion, however, may take on
almost any form. In the classic form, it evolves from a macule to a papule and finally to
an erosion or ulcer . Occasionally, multiple lesions may be present (~40%), with
multiple lesions more common when coinfected with HIV. Lesions may be painful or
tender (30%), and they may occur outside of the genitals (2–7%). The most common
location in women is the cervix (44%), the penis in heterosexual men (99%), and anally
and rectally relatively commonly in men who have sex with men (34%). Lymph node
enlargement frequently (80%) occurs around the area of infection, occurring seven to
10 days after chancre formation. The lesion may persist for three to six weeks without
treatment.
Secondary syphilis occurs approximately four to ten weeks after the primary
infection.While secondary disease is known for the many different ways it can
manifest, symptoms most commonly involve the skin, mucous membranes , and
lymph nodes . There may be a symmetrical, reddish-pink, non-itchy rash on the
trunk and extremities, including the palms and soles. Rare manifestations include
hepatitis , kidney disease, arthritis.
4. Latent syphilis is defined as having serologic proof of infection without symptoms
of disease. It is further described as either early (less than 1 year after secondary
syphilis) or late (more than 1 year after secondary syphilis) in the United States.
The United Kingdom uses a cut-off of two years for early and late latent syphilis.
Early latent syphilis may have a relapse of symptoms. Late latent syphilis is
asymptomatic , and not as contagious as early latent syphilis.
Tertiary syphilis may occur approximately 3 to 15 years after the initial infection,
and may be divided into three different forms: gummatous syphilis (15%), late
neurosyphilis (6.5%), and cardiovascular syphilis (10%). People with tertiary
syphilis are not infectious. Gummatous syphilis or late benign syphilis usually
occurs 1 to 46 years after the initial infection, with an average of 15 years. This
stage is characterized by the formation of chronic gummas , which are soft,
tumor-like balls of inflammation which may vary considerably in size. They
typically affect the skin, bone, and liver, but can occur anywhere. Neurosyphilis
refers to an infection involving the central nervous system . It may occur early,
being either asymptomatic or in the form of syphilitic meningitis , or late as
meningovascular syphilis, general paresis , or tabes dorsalis , which is associated
with poor balance and lightning pains in the lower extremities. Late neurosyphilis
typically occurs 4 to 25 years after the initial infection. Meningovascular syphilis
typically presents with apathy and seizure , and general paresis with dementia
and tabes dorsalis.
5.
6. Congenital syphilis is that which is transmitted during pregnancy or during
birth. Two-thirds of syphilitic infants are born without symptoms. Common
symptoms that develop over the first couple years of life include:
hepatosplenomegaly (70%), rash (70%), fever (40%), neurosyphilis (20%), and
pneumonitis (20%). If untreated, late congenital syphilis may occur in 40%,
including: saddle nose deformation, Higoumenakis sign , saber shin , or
Clutton's joints among others.
Syphilis is transmitted primarily by sexual contact or during pregnancy from a
mother to her fetus ; the spirochaete is able to pass through intact mucous
membranes or compromised skin. It is thus transmissible by kissing near a
lesion, as well as oral, vaginal, and anal sex. Approximately 30 to 60% of
those exposed to primary or secondary syphilis will get the disease.
Diagnosis:
Syphilis is difficult to diagnose clinically early in its presentation. Confirmation
is either via blood tests or direct visual inspection using microscopy . Blood
tests are more commonly used, as they are easier to perform. Diagnostic tests
are, however, unable to distinguish between the stages of the disease.
7.
8.
9.
10. Syphilitic Chancres
Genital (95%) and extragenital (5%).
Highly infectious.
Usually single.
Indurated.
Painless.
Edge regular.
Floor clean.
Heal in 3-6 weeks
Chancre of the genitalia, tongue, lip and hard palate.
11.
12. Secondary Syphilis
Ddx“Great Imitator”
Pityriasis rosea
Drug eruptions (pruitic)
Lichen planus; Wickham’s striae, Koebner’s, pruitic
Psoriasis; no adenopathy
Sarcoidosis; need serology and silver staining of biopsy
Infectious mononucleosis, false pos RPR
Geographic tongue
Aphthous stomatitis
Distribution of skin lesions of secondary syphilis
• Macular lesions most often found in pink colored areas
• Papular lesions in light blue areas
• Pustular lesions in the purple areas
14. Condylomata lata:
Wart-like lesions in moist intertriginous areas.
Sessile
don’t bleed easily.
D.D.: Condyloma accuminata:
Pedunculated
Bleed easily.
All of these lesions teem with treponemes and are highly contagious
Naso-Labila fold.
18. TERTIARY SYPHILIS
Latent stage: After the rash clears, a person may have a period with no symptoms.
This is often called the "hidden stage." Even though symptoms go away, the
bacteria that cause syphilis are still in the body and begin to damage the internal
organs. This stage may be as short as 1 year or last from 5 to 20 years. Often, a
woman with latent-stage syphilis doesn't find out that she has the infection until
she gives birth to a child with syphilis.
Late (tertiary) stage: If syphilis is not found and treated in the early stages, it can
cause other serious health problems. These can include blindness, problems with
the nervous system and the heart, and mental disorders. It can also cause death.
19. Complications of tertiary (late) syphilis include:
Gummata, which are large sores inside the body or on the skin.
Cardiovascular syphilis, which affects the heart and blood vessels.
Neurosyphilis, which affects the nervous system.
Congenital syphilis refers to syphilis passed from the mother to the
baby during pregnancy or during labor and delivery. Congenital
syphilis can cause complications in newborns and children.
Palatal gumma.
20. THE SKELETAL MANIFESTATIONS OF CONGENITAL SYPHILIS.
Unfortunately, congenital syphilis is still a problem in some
countries. The disease is an intra-uterine infection which usually
manifests shortly after birth. Spirochetes cross the placental barrier
after the fourth month of pregnancy, though clinical symptoms may
not appear for several weeks after birth. Congenital syphilis is
divided into early (before 2 years of age) and late. The disease is
seldom seen in North America and in some hospitals routine
serological tests have been discontinued (Wilkinson and Heller 1971
; Rosenfeld, Weinert and Kahn 1983; Toohey 1985). In the United
Kingdom about 10 cases are seen each year (Ewing et al 1985).
Primary skeletal involvement is rare (Levin 1970; Toohey 1985). It is
a bilaterally symmetrical polyostotic condition which affects mainly
tubular bones, but any bone may be affected (McLean 1931).
Diagnosis may be difficult when the classical presentation of
bilaterally symmetrical osteoperiostitis is absent.
21. Radiograph of left upper limb with diffuse metaphysitis, osteitis and dactylitis.
28. Anterior-posterior projection of bilateral lower extremities — widespread osseous deformities
are shown involving the epiphyseal-metaphyseal junctions and long bone cortices
29. Lucent bands in proximal and distal extremity of
femur, tibia and fibula , humerus, radius and ulna.
35. Neurosyphilis.
I. Asymptomatic neurosyphilis: 15-40% of patients with syphilis will have some
CSF abnormalities
• Diagnosed by positive CSF VDRL; serum treponemal and non-treponemal tests
usually positive as well
• LP: 10-100 WBC (lymphocyte predominance), protein 50-100
• Rarely CSF VDRL will be negative with positive serum tests; in that case, if the
patient has a CSF consistent with syphilis, many people will treat for neurosyphilis
II. Acute syphilitic meningitis: 6% of syphilis patients
• Typically the earliest manifestation of neurosyphilis
• Often associated with cranial nerve palsies, fever, HA, meningismus, and may
have signs of cortical involvement
• CSF may be much like asymptomatic neurosyphilis or may demonstrate higher
cell counts/protein and lower glucose
• Serum and CSF VDRL almost always positive
III. Meningovascular syphilis: 10-12% of patients
• Syphilitic endarteritis causes infarction clinically similar to stroke, although may
have a prodrome
• CSF: lymphocytosis, elevated protein; CSF VDRL usually positive
36. IV. General paresis: Relatively rare; occurs 15-20 years after initial infection
• Syphilitic infection of the meninges and cortex causes personality changes, paranoia,
emotional liability, eventually progressing to memory loss and dementia
• CSF: elevated lymph's and/or protein; VDRL usually positive in pre-HIV era but current
data suggests sensitivity of 27-92%. Treponemal tests may be more sensitive but often are
not standardized for use on CSF. A PCR has been developed but data on utility not known.
V. Tabes dorsalis: Now rare; disease of posterior columns of spinal cord that occurs 18-25
years after infection. Often coexists with general paresis.
• Manifestations: abnormal gait, paresthesias, lightning pains of extremities, loss of
proprioception on exam, positive Romberg; Argyll-Robertson pupils may be seen with this
and/or general paresis • Abnormal CSF is less common in this setting, and CSF VDRL was
normal in up to 1/3 of cases in pre-HIV era
VI. Pearls about neurosyphilis:
• Any inflammatory disease of the eye can be mimicked by neurosyphilis
• The cranial nerves most commonly involved in neurosyphilis are VII and VIII
• Syphilitic otitis causes tinnitus and may be the only symptom at presentation
• In non-HIV+ patients, those with neurosyphilis should have a positive serum treponemal
test (MHATP/FTA)
• In non-HIV+ patients, a positive CSF VDRL always indicates neurosyphilis, whereas a
positive CSF PCR for syphilis simply indicates that CSF invasion has occurred
• HIV+ patients may have titers discordant from their true disease state and therefore
probably warrant more aggressive treatment; they may also progress more quickly
than pts in the pre-HIV era.
37. CT images of the vertex calvaria. A, Axial CT image (2.5-mm section thickness)
demonstrates irregular bone destruction involving the calvaria. The outer cortex is
predominantly involved. Irregular channel-like areas of bone destruction are best
demonstrated in the vertex lesion (arrow). B, 3D volume-rendered image (using
2.5-mm reconstructed images) demonstrates the irregular worm-eaten nature of
the destructive lesions, characteristic of syphilitic osteomyelitis.(arrows).
38. A, Axial fast spin-echo (FSE) T2-weighted image with fat saturation (TR, 3300 ms; TE,86.4 ms; echo-train,
12). B, Coronal spin-echo T1-weighted image (TR, 400 ms; TE, 8.0 ms) after gadolinium
administration (20 mL). Axial FSE T2-weighted image (A) demonstrates abnormal marrow edema in
the frontal bone (arrow). There is subgaleal/periosteal inflammatory tissue adjacent to the right
frontal destructive lesion, which exhibits increased signal intensity on T2-weighted image (A, white
arrowhead). The bone destruction is irregular and predominantly involves the outer cortex (A, black
arrowhead). The vertex lesion enhances intensely, involving nearly the entire thickness of the calvaria
(B, black arrowhead). Mild dural enhancement is noted along the right convexity (B, arrow), consistent
with inflammatory involvement. The adjacent subgaleal/periosteal inflammatory process enhances
intensely (white arrowheads). No parenchymal signal-intensity abnormalities are identified.
39. Neurosyphilis , axial T2-weighted MR images (A, B) demonstrate well-defined areas of abnormal high signal in the basal ganglia
bilaterally and in a wedge-shaped distribution in the right parietal lobe (arrows). Axial T1-weighted images post-gadiolinium. Coronal
T1-weighted images post-gadolinium demonstrate irregular ring enhancement of the lesions (arrows). (Syphilitic gumma)
40. Neurosyphilis, axial T2-weighted MRI (A) demonstrates a dural-based, peripherally
hyperintense and centrally hypointense lesion located lateral to the left frontal lobe
(arrows). Axial (B) and coronal (C) T1-weighted MR images post-gadolinium
demonstrate peripheral enhancement of the lesion (arrows). (Syphilitic gumma).
46. Images of a 50-year-old man with a 3-month history of progressive dementia, who
presented with seizures. Serologic evidence of active neurosyphilis was present, and there
was no evidence of herpes virus infection. A, Axial FLAIR image obtained at midbrain level.
B, Axial FLAIR image obtained at the level of the pons. Asymmetrical bilateral signal
hyperintensity in the mesial temporal lobes can be seen and is greater on the right side than
on the left. C, Axial T1-weighted image obtained at the level of the low midbrain. This image
shows mild left temporal lobe atrophy, evidenced by dilation of the temporal horn (Arrow ).
47. Axial FLAIR image of the same patient, obtained 10 days after treatment with
penicillin. There are essentially no imaging differences as compared with the
pretreatment images. F IG 3. Axial FLAIR image of the same patient, obtained 4
months after treatment with penicillin. There is significant interval improvement
in the previously noted mesial temporal signal abnormalities. There is also slight
right temporal atrophy, with compensatory dilation of the temporal horn.
48. Brain imaging studies. (a) Pre-treatment brain magnetic resonance imaging scan showing
bilateral mesial temporal high T2 signal intensity (arrows). (b) Pre-treatment brain
positron emission tomography/computed tomography brain scan revealing a focus of
intensely increased 18F-fluorodeoxyglucose uptake limited to the head of the right
hippocampus (arrow) on a background of globally decreased 18F-fluorodeoxyglucose
uptake. (c) Post-treatment brain magnetic resonance imaging scan showing marked
improvement in the previously identified bilateral hyperintensities, which were replaced by
atrophy (arrows). (d) Post-treatment positron emission tomography brain scan showing
normal 18F-fluorodeoxyglucose uptake in the right hippocampus..
49. Magnetic Resonance Imaging (MRI) of the brain. A/ Axial fluid attenuated
inversion recovery (FLAIR). B/ Sagittal fluid attenuated inversion recovery (FLAIR).
C/ Coronal 3D -T1-TFE. D/Coronal T2WI – TSE. All images are showing marked
diffuse loss of brain parenchyma including mesiotemporal atrophy. Note that
there are no areas of increased signal intensity in the FLAIR and T2W images.
50. Axial fluid-attenuated inversion recovery images (A–C) show hyperintensity of bilateral
mesial temporal structures, insula, pulvinar of the thalami, and right temporo-occipital
cortex. Isotropic trace diffusion-weighted imaging (D) and apparent diffusion coefficient
(E) maps show restricted diffusion in the right temporo-occipital cortex and right insula.
52. Neurosyphilis in HIV-Positive and HIV-Negative Patients:
Syphilis is caused by the spirochete Treponema pallidum and remains an important
and frequently encountered sexually transmitted disease. During the era of acquired
immunodeficiency syndrome (AIDS), there has been a dramatic rise in the number of
cases of syphilis and a corresponding increase in the incidence of neurosyphilis.
Invasion of the central nervous system by the organism can occur at any stage of
syphilitic infection, and occurs in about 5% to 10% of untreated patients. However,
neurosyphilis has been reported to develop in one third of patients who progress to
late stages of the disease. Syphilis is clearly recognized as one of the infectious
complications of infection with the human immunodeficiency virus (HIV). Evidence of
an increased occurrence of syphilis with HIV infection has been previously reported.
The association is not unexpected because AIDS and neurosyphilis are both sexually
transmitted diseases. Early diagnosis is critical in the management of the disease in
that it is easily treatable with appropriate antibiotics, but establishing the diagnosis is
often difficult because most patients are asymptomatic or present with nonspecific
symptoms. Some classic forms of the disease (general paresis of the insane and tabes
dorsalis) are seen rarely in the era of antibiotics, and it appears that the expected
progression of disease is altered by HIV infection. Identification of the more common
radiologic appearances of neurosyphilis are important in order that appropriate
clinical testing and treatment can be initiated. The neuroimaging findings of patients
with neurosyphilis in a group of patients with and without HIV infection.
53. 33-year-old HIV-positive woman with seizures and left hemiparesis. A,
Noncontrast brain CT image reveals a region of low attenuation in the distribution
of the right middle cerebral artery that involves cortex and adjacent white matter,
consistent with infarction (arrows). B, On the contrast-enhanced image there is
striking parenchymal enhancement indicating a subacute stage of the infarction.
54. A 43-year-old HIV-positive man
with left hemiparesis and seizures
who had a brain stem infarction
with basilar arteritis. A, T2-
weighted (2550/80/1) axial MR
image shows a large area of
increased signal in the pons. No
normal flow void is present in the
basilar artery. The area of low
intensity anterior to the pons
(arrow) represents pulsatile
cerebrospinal fluid flow in the
basilar cisterns in this patient with
meningovascular syphilis.
The contrast enhanced T1-weighted
images (not shown) revealed mild
pontine enhancement. B, Sagittal
projection image from 3-D time-of-flight
MR angiography shows high-grade
narrowing of the basilar
artery (arrows).
55. A 48-year-old HIV-negative man with fever, elevated
serum white blood cell count, and left hemiparesis,
who had multiple manifestations of neurosyphilis. A,
Axial T2-weighted (2650/80/1) image reveals poorly
defined regions of increased signal in the pons
(straight arrows) corresponding to areas of brain
stem infarction. A flow void in the basilar artery is
present, unlike in Figure 2, but it is small (curved
arrow). B, Axial enhanced T1-weighted (600/30/1)
image demonstrates a linear band of enhancement
within the area of pontine infarction (arrow). C,
Coronal enhanced T1-weighted (600/30/1) image
reveals extraaxial enhancement around the
supraclinoid segment of the right internal carotid
artery (arrows) corresponding to localized meningitis.
There is also a large enhancing infarction in the right
gangliocapsular structures producing mass effect on
the ventricular system. D, Coronal 3-D time-of-flight
MR angiography projection image shows severe
stenosis of the right supraclinoid internal carotid
artery (short, thick arrow), with decreased caliber of
the ipsilateral proximal middle cerebral artery (long,
thin arrows). E, The sites of arteritis identified in D
are confirmed on conventional angiography of the
right internal carotid artery (arrows). F,
Vertebrobasilar angiogram also demonstrates
vasculitis involving the distal basilar artery, with
marked irregularity (arrows).
56. Cerebral gumma discovered in a 22-year-old HIV-positive man with headache and
ataxia (courtesy of H. Waskin, MD). A, Coronal T1-weighted (750/25/2) image
after contrast administration reveals an ill-defined enhancing mass in the right
parietal cortex with surrounding edema (arrows). Slightly more posteriorly, there
was a faint tag of meningeal enhancement (not shown). B, Axial enhanced T1-
weighted (500/20/1) image at the level of the lesion after approximately 3
months of high-dose penicillin therapy shows resolution of the mass and edema.
58. Syphilitic myelitis with diffuse spinal cord abnormality on MR imaging:
Syphilitic myelitis is a very rare manifestation of neurosyphilis.
The MRI appearance of syphilitic myelitis is not well
documented and only a few cases have been reported.
Magnetic resonance imaging of the spine showed diffuse high
signal intensity in the whole spinal cord on T2-weighted
images. Focal enhancement was observed in the dorsal aspect
of the thoracic cord on T1-weighted gadolinium-enhanced
images. To our knowledge, diffuse spinal cord abnormality in
syphilitic myelitis has not been reported in the international
literature. Disappearance of the diffuse high-signal lesions
with residual focal enhancement was noted after antibiotic
therapy. The patient suffered significant neurological deficit
despite improvement in the MR images.
59. Tabes dorsalis, also known as syphilitic myelopathy, is a slow
degeneration (specifically, demyelination) of the nerves primarily in the
dorsal columns (posterior columns) of the spinal cord (the portion
closest to the back of the body). They help maintain a person's sense of
position proprioception), vibration, and discriminative touch.
Sagittal (A) and axial (B) section of T2WI on MRI showing intramedullary hyperintensity
and cord atrophy in dorsal spinal cord in man with tabes dorsalis of syphilis.
61. Syphilitic myelitis: Magnetic resonance imaging features
(a) Sagittal T2-weighted image of the thoracic spinal cord shows long-segment diffuse
high signal intensity from T6 to T11 with cord swelling. (b) Coronal T1-weighted image
with contrast shows focal enhancement at T8/T9 level. (c) Sagittal T1-weighted image
with contrast. (d) Axial T1-weighted image with contrast at T8/T9 level
62. Follow-up magnetic resonance imaging performed 1 month after onset of
treatment. (a) Sagittal and (b) axial gadolinium-enhanced T1-weighted images
show residual focal enhancement in the thoracic cord at T8/T9 level.
63. Follow-up magnetic resonance imaging performed 3 months
after onset of treatment. (a) Sagittal T2-weighted image and (b)
sagittal gadolinium-enhanced T1-weighted image show normal
spinal cord and the abnormal signals have disappeared.
64.
65.
66.
67.
68.
69.
70. OTOSYPHILIS.
OTOLOGIC SIGNS AND SYMPTOMS
Otosyphilis can closely resemble Meniere's disease, perilymph
fistula, sudden hearing loss, autoimmune inner ear disease, and
bilateral vestibular loss. Because the inner ear communicates
with spinal fluid via the cochlear aqueduct, otosyphilis is a
variety of neurosyphilis and neurological symptoms are also
possible.
Early neurosyphilis mainly presents as meningitis with or without
cranial nerve involvement and meningovascular disease or
stroke. Hearing symptoms of early neurosyphilis might be a
sudden hearing loss.
Late neurosyphilis may affect the brain (general paresis), or
spinal cord (tabes dorsalis). In the ear, late neurosyphilis may
present as hearing loss, fluctuating hearing, or vestibular
imbalance/weakness (vertigo).
71. Enhanced MRI shows enhancement within
the cisternal segment of the
vestibulochoclear nerve complex on the
right (curved open arrow), within both
internal auditory canals, within the left
cochlea (curved solid arrow), and within
the tympanic portion of the right facial
nerve (small arrow). The enhancement
within the internal auditory canals
involves both the nerves within the CSF
and the meninges lining the canal.
Enhancement is also seen within the
middle turn of the right cochlea. fig 2.
Axial T1-weighted MR image (450/15/4),
obtained after the administration of
contrast medium from a position that is
slightly superior to that of figure 1, shows
enhancement of the labyrinthine and
geniculate portions of the right facial
nerve (large arrow) and enhancement of
the meninges lining both internal auditory
canals (small arrows). Enhancement of the
intracanalicular segments of the seventh
and eighth cranial nerve complex is
appreciated bilaterally.
73. Syphilis of the heart and aorta.
Syphilis is a disease caused by infection with the microorganism
Treponema pallidum, is widespread in its early stages, affecting the
entire body. During this initial phase there may be transient
inflammation of the heart muscle, but usually with little or no
impairment of the circulation. In the late stages of the disease, there
may be syphilitic involvement of the heart, confined almost purely to
the aorta and aortic valve. A particularly severe form of aortic
insufficiency may develop, with subsequent dilation and
enlargement of the heart and, eventually, heart failure. The disease
process often involves the base of the aorta and the blood flow
through the openings into the coronary vessels from the aorta,
causing impairment of the coronary circulation, with resultant
angina pectoris and, on rare occasions, myocardial infarction, the
death of portions of heart muscle.
80. Contrast-enhanced CT scan of the abdomen (A) and pelvis (B) shows irregular wall thickening
in the neck of the gallbladder (arrow in A), with multiple, enlarged inguinal lymph nodes
(arrows in B) showing relatively preserved fatty hila. CT scan of the chest (C) shows multiple,
well-defined, small, subcentimetre nodules (arrows), in both lower lobes in pulmonary syphilis
81. SYPHILITIC PAROTITIS :
large, hard mass in the
right parotid gland with
diameter of more than 5
cm, a smaller similar
lesion in the left parotid
gland and
lymphadenopathy of
the right axilla.
82.
83. Primary syphilis with left cervical and supraclavicular
nodes and MR hyperintense nodes on STIR sequence.
84. An axial MRI scan after administration of contrast material shows an
enlarged lymph node with high signal intensity. (B) The enhanced
mass had invaded both pharyngeal recesses in syphilitic patient.
85. SYPHILITIC ARTHRITIS.
The joints may be involved at most stages of congenital and acquired
syphilis. It is a protean
condition, and may appear in many transitional forms between the
various clinical types.
In congenital syphilis, arthritis occurs in two forms, and a third form is
common to both the
congenital and the acquired disease. In infants the typical form is Parrot's
syphilitic osteochondritis, whilst in older children "Clutton's joints" are the
Common manifestation (Clutton, 1886). Certain other forms are analogous
to the signs of tertiary syphilis seen in adult cases of acquired syphilis.
D'Arcy Power (1908) classified congenital syphilitic arthritis as follows:
(i) Suppurative arthritis;
(i) Hydrarthrosis;
(iii) Symmetrical serous synovitis; Clutton's joints;
(iv) Gummatous synovitis;
(v) Chondro-arthritis; ulcerating or von Gie joints.
86. Fig. la.-Case 1. Subchondral erosions of left lateral femoral Fig. lb.-Case 1. Appearances in
left knee joint have reverted to condyle and head of left fibula. Bands of bismuth deposition
are normal after 6 months. Bismuth bands now broader. seen in the metaphyseal areas.
87. Erosion at loser end or right radius in relation to inferior radio-ulnar joint.
88. Generalized increase in skeletal density due to
Adult type of widespread bismuth deposition.
89. Lateral views of both knee joints showing bilateral irregularity of articular
surfaces with a small loose body in the right anterior joint compartment.
90. Liver involvement in syphilis.
Congenital syphilis is increasingly being diagnosed in developed countries
after many years of decline. The liver is characteristically involved.
However, fulminant hepatic failure and subsequent liver calcifications are
both rare in patients with congenital syphilis. The infant reported here
had both of these rare manifestations of this disease.
Secondary syphilis is characterized by anicteric cholestasis, an
inflammatory syndrome, and periportal infiltrate inconstantly associated
with centrilobular necrosis, granulomatous reaction and presence of
treponemas in the lesions. Due to the increasing frequency of sexually
transmitted diseases, this diagnosis could become more frequent.
Tertiary syphilis, especially in cases involving visceral gummatous
disease, can be confused with cancer of the solid organs. The tertiary
hepatic syphilis that manifested with intrahepatic masses in a patient
who had an underlying primary peritoneal serous carcinoma (PPSC).
96. Syphilitic hepar lobatum CT shows a liver with lobulated contours, capsular
retractions and wedge-shaped hypodense areas in arterial (A) and portal (B)
phases. Left portal vein thrombosis (B) was associated to left lobe atrophy.
97. MRI shows that the lesions
remained hypovascular in
arterial (A) and portal
phases (B) and presented
contrast enhancement only
in the delayed phase (C).
99. Syphilis and kidney disease:
Syphilis can affect the kidney and usually causes a glomerular
lesion with variable amounts of proteinuria. Recognizing the
association of syphilis and proteinuria is important since
antibiotic therapy generally results in complete recovery of
the associated nephropathy. Kidney involvement due to
syphilis has been reported during secondary, latent and
tertiary syphilis. Patients may present with sub-nephrotic
albuminuria (most common presentation), membranous
glomerulonephritis (MGN), mesangial proliferative
glomerulonephritis (MPGN), rapidly progressive crescentic
glomerulonephritis or minimal change disease. MGN from
syphilis results from antitreponemal antibody
(Immunoglobulin G) deposition in the subepithelial layer of
the glomerular basement membrane.
102. Cutaneous manifestation of syphilis.
It should be noted that syphilis dermatological manifestations are very clear, but the
systemic involvement is still not so well established. It is possible that the association
with other organs in earlier stages, besides skin, is more frequent than one can
imagine. Specialized services have observed cutaneous stages overlay even in HIV-seronegative
patients, apart from early onset of systemic symptoms in this same
group. Syphilis classification in stages in only didactic, and as it is an infection,
Erythematous-violaceous papules scattered over the centrofacial region and forehead.