Sarcoidosis is a multisystem granulomatous disorder of unknown etiology characterized by non-caseating granulomas. It most commonly affects the lungs presenting as bilateral hilar lymphadenopathy and pulmonary infiltrates. Extrapulmonary involvement can include the skin, eyes, liver and musculoskeletal system. Diagnosis involves clinical features and exclusion of other causes. Treatment involves corticosteroids while prognosis depends on organ involvement with lung fibrosis carrying the worst prognosis.
Prof. Md. Khairul Hassan Jessy
Professor of Respiratory Medicine
National Institute of Diseases of the Chest and Hospital (NIDCH)
Mohakhali, Dhaka, Bangladesh
Pulmonary sarcoidosis is a multisystem inflammatory disease of unknown etiology characterized by non-caseating granulomas. It most commonly affects the lungs, skin, eyes and lymph nodes. The pathogenesis involves accumulation of inflammatory cells and T lymphocytes forming granulomas that can damage tissues. Diagnosis is based on clinical features, radiological evidence of non-caseating granulomas on biopsy with other causes excluded. Treatment depends on severity and organ involvement but may include corticosteroids.
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 sarcoidosis, including:
- It is a multisystem granulomatous disorder of unknown cause that commonly affects the lungs, skin and eyes.
- Risk factors include genetics and environmental exposures, and it has the highest rates in the United States and Sweden.
- Clinical presentation varies from asymptomatic to involvement of multiple organ systems. Lung involvement is most common and is staged based on chest x-ray findings.
- Diagnosis involves ruling out other causes and may include biopsy showing non-caseating granulomas. Treatment involves corticosteroids and prognosis is generally good with many experiencing remission.
This document discusses the case of a 26-year-old woman who presented with sudden right chest pain and dyspnea. Tests revealed a right pneumothorax and bilateral lung cysts. The most likely diagnosis is lymphangioleiomyomatosis (LAM), a rare lung disease that affects women and causes proliferation of smooth muscle cells in the lungs leading to cyst formation and spontaneous pneumothorax. LAM is characterized by recurrent pneumothorax, cough, dyspnea and chylous effusions. Diagnosis involves chest imaging and biopsy showing cystic changes. Treatment options include pleurodesis and lung transplantation for end-stage disease.
References
Fisherman's Pulmonary Diseases & Disorders 5th ed
Murray & Nadel's Textbook of Respiratory Medicine 6th ed
Croatian & Douglas Respiratory Medicine 5th ed
Harrison's Principle of Internal Medicine 19th edition
NEJM Article
This document provides information on sarcoidosis, including its definition, epidemiology, etiology, clinical presentation, complications, diagnosis, and management. Some key points:
- Sarcoidosis is a granulomatous disease involving multiple organ systems that is thought to be due to an abnormal immune response in genetically predisposed individuals.
- Lungs are involved in over 90% of cases. Other commonly involved organs include lymph nodes, eyes, and skin.
- Diagnosis is based on compatible clinical presentation plus histological evidence of non-caseating granulomas. Bronchoalveolar lavage can also provide supportive evidence.
- Treatment is usually not needed for asymptomatic cases but may involve cort
- A 41-year-old African American woman presents with a rash on her arm and worsening asthma symptoms over the past month. Biopsy of the rash shows noncaseating granulomas, and chest imaging reveals bilateral interstitial lung disease.
- Sarcoidosis is suspected based on the clinical findings and biopsy results. Sarcoidosis is a multisystem inflammatory disease characterized by the formation of noncaseating granulomas that can affect multiple organ systems, most commonly the lungs.
- Further workup and management are needed to evaluate organ involvement and determine treatment for the patient's sarcoidosis.
Prof. Md. Khairul Hassan Jessy
Professor of Respiratory Medicine
National Institute of Diseases of the Chest and Hospital (NIDCH)
Mohakhali, Dhaka, Bangladesh
Pulmonary sarcoidosis is a multisystem inflammatory disease of unknown etiology characterized by non-caseating granulomas. It most commonly affects the lungs, skin, eyes and lymph nodes. The pathogenesis involves accumulation of inflammatory cells and T lymphocytes forming granulomas that can damage tissues. Diagnosis is based on clinical features, radiological evidence of non-caseating granulomas on biopsy with other causes excluded. Treatment depends on severity and organ involvement but may include corticosteroids.
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 sarcoidosis, including:
- It is a multisystem granulomatous disorder of unknown cause that commonly affects the lungs, skin and eyes.
- Risk factors include genetics and environmental exposures, and it has the highest rates in the United States and Sweden.
- Clinical presentation varies from asymptomatic to involvement of multiple organ systems. Lung involvement is most common and is staged based on chest x-ray findings.
- Diagnosis involves ruling out other causes and may include biopsy showing non-caseating granulomas. Treatment involves corticosteroids and prognosis is generally good with many experiencing remission.
This document discusses the case of a 26-year-old woman who presented with sudden right chest pain and dyspnea. Tests revealed a right pneumothorax and bilateral lung cysts. The most likely diagnosis is lymphangioleiomyomatosis (LAM), a rare lung disease that affects women and causes proliferation of smooth muscle cells in the lungs leading to cyst formation and spontaneous pneumothorax. LAM is characterized by recurrent pneumothorax, cough, dyspnea and chylous effusions. Diagnosis involves chest imaging and biopsy showing cystic changes. Treatment options include pleurodesis and lung transplantation for end-stage disease.
References
Fisherman's Pulmonary Diseases & Disorders 5th ed
Murray & Nadel's Textbook of Respiratory Medicine 6th ed
Croatian & Douglas Respiratory Medicine 5th ed
Harrison's Principle of Internal Medicine 19th edition
NEJM Article
This document provides information on sarcoidosis, including its definition, epidemiology, etiology, clinical presentation, complications, diagnosis, and management. Some key points:
- Sarcoidosis is a granulomatous disease involving multiple organ systems that is thought to be due to an abnormal immune response in genetically predisposed individuals.
- Lungs are involved in over 90% of cases. Other commonly involved organs include lymph nodes, eyes, and skin.
- Diagnosis is based on compatible clinical presentation plus histological evidence of non-caseating granulomas. Bronchoalveolar lavage can also provide supportive evidence.
- Treatment is usually not needed for asymptomatic cases but may involve cort
- A 41-year-old African American woman presents with a rash on her arm and worsening asthma symptoms over the past month. Biopsy of the rash shows noncaseating granulomas, and chest imaging reveals bilateral interstitial lung disease.
- Sarcoidosis is suspected based on the clinical findings and biopsy results. Sarcoidosis is a multisystem inflammatory disease characterized by the formation of noncaseating granulomas that can affect multiple organ systems, most commonly the lungs.
- Further workup and management are needed to evaluate organ involvement and determine treatment for the patient's sarcoidosis.
This document provides information on sarcoidosis, a chronic inflammatory disease of unknown cause that most commonly affects the lungs. It discusses the typical presentation and involvement of organs, diagnostic testing including imaging and biopsy findings, differential diagnoses, prognosis, and treatment approaches including corticosteroids as first-line therapy and immunosuppressants for refractory disease. The goal of treatment is to control inflammation and symptoms, with corticosteroids being the mainstay but other agents used if there is no response or for life-threatening disease.
- Sarcoidosis is a multi-system inflammatory disease characterized by non-caseating granulomas that can affect multiple organs. It most commonly involves the lungs, skin, and eyes.
- Diagnosis requires compatible clinical features along with histological evidence of non-caseating granulomas and exclusion of alternative diagnoses. Treatment involves glucocorticoids and immunosuppressants depending on the severity and organs involved. Prognosis depends on the specific organs affected and presence of adverse factors like lupus pernio or chronic uveitis.
This document provides information on sarcoidosis, a multisystem chronic inflammatory disease characterized by non-caseating granulomas. It discusses the epidemiology, etiology, clinical presentation, pathology, diagnosis and systems involvement of the disease. Sarcoidosis most commonly affects the lungs and lymph nodes, presenting as bilateral hilar lymphadenopathy. The cause is unknown but believed to involve a disordered immune response in genetically predisposed individuals. Diagnosis is based on clinical features along with identification of non-caseating granulomas in biopsy specimens.
Sarcoidosis is a multisystem disorder characterized by noncaseating granulomas in affected tissues. It most commonly involves the lungs but can affect other organs. The cause is unknown but genetic and environmental factors are thought to play a role. Diagnosis is made through biopsy showing granulomas and excluding other causes. Treatment involves corticosteroids for organ involvement. Prognosis is generally good with remission occurring within 3 years for over half of patients.
Diffuse alveolar haemorrhage (DAH) is characterized by bleeding into the alveolar spaces caused by disruption of the alveolar-capillary basement membrane due to injury or inflammation of the small blood vessels in the lungs. Common initial symptoms include cough, hemoptysis, fever, and dyspnea. Diagnostic tests show increased DLCO on PFTs and progressively more hemorrhagic bronchoalveolar lavage samples. Treatment focuses on treating the underlying cause with glucocorticoids as the mainstay along with additional immunosuppressive agents or plasma exchange depending on the cause.
This document discusses interstitial lung disease (ILD) associated with connective tissue diseases (CTDs). It begins by providing background on ILD and defining common presentations. It then discusses the classification of ILD and patterns associated with different CTDs. Common CTDs that can cause ILD are described such as systemic sclerosis, rheumatoid arthritis, and polymyositis/dermatomyositis. Risk factors, pathophysiology, epidemiology, clinical presentation, investigations including radiography and antibodies, and biomarkers for ILD associated with CTDs are summarized. Specific CT features that can help differentiate CTD-ILD from idiopathic pulmonary fibrosis are also outlined.
This document provides information on eosinophils and pulmonary eosinophilic syndromes. It discusses the classification of pulmonary eosinophilic syndromes including Loeffler's syndrome, drug-induced pulmonary eosinophilia, idiopathic acute eosinophilic pneumonia, tropical pulmonary eosinophilia, and chronic eosinophilic pneumonia. For each condition, it describes the clinical features, investigations, treatment, and prognosis. Radiographic and microscopic images are also included to illustrate common findings.
Sarcoidosis is a multisystem disorder characterized by non-caseating granulomas that commonly affect the lungs and lymph nodes. It most often occurs in adults under 40 years old and has a higher prevalence in African Americans. While the exact cause is unknown, it involves an abnormal immune response in genetically predisposed individuals. Lung involvement is present in 90% of cases and lymph node involvement in 70% of cases. Pulmonary sarcoidosis ranges from asymptomatic hilar lymphadenopathy to progressive pulmonary fibrosis. Skin and eye involvement also occurs in a significant portion of patients.
Cavitary lung lesions can have various causes including cancer, infection, autoimmune disease, vascular embolism, and trauma. On imaging, characteristics like wall thickness, inner contour, location, and other associated findings provide clues to the underlying etiology. Malignant processes tend to have thicker walls over 15mm while benign lesions usually have thinner walls under 4mm. Infectious cavities often have irregular inner walls and may contain fluid levels. Autoimmune diseases typically cause multiple bilateral nodules. The clinical context is also important for determining the most likely diagnosis.
Lymphangioleiomyomatosis (LAM) is a rare lung disease that affects premenopausal women. It involves the proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs, lymphatic system, and kidneys. This leads to cyst formation in the lungs and lymphatic obstruction, causing symptoms like shortness of breath, pneumothorax, chylous ascites, and lymphangioleiomyomas. The disease has links to tuberous sclerosis complex and is exacerbated by estrogen. Diagnosis involves imaging and biopsy to identify LAM cells. Treatment focuses on managing symptoms, with lung transplantation as a last resort.
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive fibrosing interstitial pneumonia of unknown cause that primarily affects older adults. It is characterized by scarring (fibrosis) of the lungs that gets worse over time. The diagnosis of IPF requires the exclusion of other known causes of lung fibrosis and the presence of a usual interstitial pneumonia pattern on HRCT or lung biopsy. High-resolution CT is an essential tool that typically shows subpleural reticulation and honeycombing. Pulmonary function tests reveal a restrictive ventilatory defect. The cause remains unknown but genetic factors and environmental exposures may play a role.
Sarcoidosis and IgG4-related diseases are inflammatory conditions characterized by granuloma formation. Sarcoidosis is a multisystem disorder involving lungs in over 90% of cases and skin, eyes, and liver in about a third of patients each. It is thought to be triggered by an infectious or environmental agent in a genetically susceptible host. IgG4-related disease is a fibroinflammatory condition that can affect virtually any organ, forming tumefactive lesions. Treatment for both conditions typically involves corticosteroids, with immunosuppressants used for chronic or resistant cases.
Sarcoidosis is a multisystem disorder characterized by non-caseating granulomas. It most commonly affects the lungs (90% of cases) and lymph nodes (70% of cases). The pathogenesis involves an abnormal immune response in genetically predisposed individuals, leading to granuloma formation. Clinically, sarcoidosis often presents as asymptomatic bilateral hilar lymphadenopathy on chest imaging. Lung involvement can range from isolated interstitial involvement to fibrosis. Skin and eye involvement are also common. The diagnosis is made by biopsy demonstrating non-caseating granulomas in the absence of infections or malignancy. The course is variable but most cases resolve spontaneously without sequelae.
- Pulmonary complications are common in acute pancreatitis and include hypoxia, atelectasis, ARDS, and pleural effusions.
- Inflammatory mediators released during pancreatitis like trypsin, phospholipase A2, and TNF-α can damage the lungs and impair oxygenation.
- Pulmonary complications occur in three stages - stage 1 involves hypoxia with no radiological abnormalities, stage 2 adds radiological findings like pleural effusions or infiltrates, and stage 3 is ARDS which has a high mortality rate. Aggressive management of oxygenation and underlying pancreatitis is important.
This document provides an overview of interstitial lung disease (ILD). It discusses the pulmonary interstitium and pathogenesis of ILD. It reviews the classification of ILD and differentiates between known and idiopathic causes. Common ILDs include idiopathic pulmonary fibrosis, nonspecific interstitial pneumonia, desquamative interstitial pneumonia, and cryptogenic organizing pneumonia. A thorough clinical assessment involves obtaining a detailed history, physical exam, radiographs, pulmonary function tests, and potentially tissue sampling.
Hypersensitivity pneumonitis is an interstitial lung disease caused by an inflammatory response to inhaled antigens. It has a prevalence of around 0.5-3% and is diagnosed based on criteria including exposure history, symptoms, imaging and pathology findings. The pathophysiology involves type III and IV hypersensitivity reactions mediated by CD8+ T cells, antibodies and granuloma formation. Diagnosis relies on clinical criteria, imaging, pulmonary function tests, BAL and biopsy. Treatment involves antigen avoidance and corticosteroids. Prognosis depends on stage of disease at presentation and ability to remove causal antigen exposure.
Sarcoidosis is a systemic granulomatous disease of unknown cause that commonly involves the lungs. It occurs worldwide and is characterized by the formation of non-caseating granulomas in affected organs. While the cause is unknown, it is believed to involve a dysregulated immune response in genetically susceptible individuals. Clinical manifestations vary depending on the organs involved but commonly include respiratory symptoms as well as skin and eye lesions. Diagnosis involves clinical and radiological evidence of granulomatous inflammation along with exclusion of other potential causes. Prognosis is generally good with many patients experiencing resolution of symptoms within a few years.
This document discusses idiopathic interstitial pneumonias other than idiopathic pulmonary fibrosis. It provides the revised ATS/ERS classification of idiopathic interstitial pneumonias and describes non-specific interstitial pneumonia (NSIP) and cryptogenic organizing pneumonia (COP) in detail. NSIP is characterized by a uniform pattern of interstitial inflammation and fibrosis. It commonly occurs in connective tissue diseases and has a good prognosis with treatment. COP is defined by organizing pneumonia in the absence of an identifiable cause, and presents with patchy consolidations that are typically peripheral and migratory.
Pulmonary alveolar proteinosis is a rare lung disease characterized by abnormal accumulation of lipoproteinaceous material in the alveoli. It was first diagnosed in 1958. The accumulation is caused by a defect in clearance by alveolar macrophages or increased surfactant production. Secondary causes include lung infections, inhalation of toxins, and hematological malignancies. Symptoms vary from asymptomatic to cough, dyspnea, and respiratory failure. Diagnosis involves imaging showing characteristic patterns and analysis of material obtained by bronchoscopy or biopsy showing accumulation of lipoproteins in the alveoli. Treatment options include steroids, whole lung lavage, and treating any underlying causes. Prognosis is generally good with treatment
- Bronchopulmonary sequestration is a rare congenital abnormality where non-functioning lung tissue receives blood supply from the systemic circulation rather than the pulmonary circulation.
- It can be intralobar, located within a normal lung lobe, or extralobar, located outside the normal lung with its own pleura.
- Presentation depends on type, size, and location but includes respiratory distress in infants or recurrent pulmonary infections. Chest imaging finds a dense lung mass and CT/MRI identify the aberrant blood supply.
- Surgical resection is recommended for symptomatic cases or high-risk asymptomatic cases to prevent complications like infection. Small extralobar cases may be observed.
Sarcoidosis is a systemic granulomatous disease of unknown cause that most commonly involves the lungs and intrathoracic lymph nodes. It can affect any organ and presents variably from asymptomatic to acute symptoms like fever and weight loss. Lung involvement is common and is staged based on chest x-ray findings. Skin, eye, and musculoskeletal involvement also occur. The diagnosis involves ruling out other causes through biopsy showing non-caseating granulomas and clinical/radiological findings. Treatment focuses on symptomatic cases using steroids or immunosuppressants for severe or organ-threatening disease.
Dr. Sagar Gandhi presented on SLE-related lupus pneumonitis. SLE is an autoimmune disease that can cause inflammation in the lungs called lupus pneumonitis. Symptoms include chest pain, cough, and shortness of breath. Diagnosis involves clinical exams, labs, imaging tests and ruling out other causes. Treatment depends on severity but may include NSAIDs, steroids, immunosuppressants, and managing infections. Complications can include pleural effusions, lung infections, diffuse alveolar hemorrhage, interstitial lung disease, pulmonary hypertension, and shrinking lung syndrome. Close monitoring is needed to manage disease activity and prevent flare-ups.
This document provides information on sarcoidosis, a chronic inflammatory disease of unknown cause that most commonly affects the lungs. It discusses the typical presentation and involvement of organs, diagnostic testing including imaging and biopsy findings, differential diagnoses, prognosis, and treatment approaches including corticosteroids as first-line therapy and immunosuppressants for refractory disease. The goal of treatment is to control inflammation and symptoms, with corticosteroids being the mainstay but other agents used if there is no response or for life-threatening disease.
- Sarcoidosis is a multi-system inflammatory disease characterized by non-caseating granulomas that can affect multiple organs. It most commonly involves the lungs, skin, and eyes.
- Diagnosis requires compatible clinical features along with histological evidence of non-caseating granulomas and exclusion of alternative diagnoses. Treatment involves glucocorticoids and immunosuppressants depending on the severity and organs involved. Prognosis depends on the specific organs affected and presence of adverse factors like lupus pernio or chronic uveitis.
This document provides information on sarcoidosis, a multisystem chronic inflammatory disease characterized by non-caseating granulomas. It discusses the epidemiology, etiology, clinical presentation, pathology, diagnosis and systems involvement of the disease. Sarcoidosis most commonly affects the lungs and lymph nodes, presenting as bilateral hilar lymphadenopathy. The cause is unknown but believed to involve a disordered immune response in genetically predisposed individuals. Diagnosis is based on clinical features along with identification of non-caseating granulomas in biopsy specimens.
Sarcoidosis is a multisystem disorder characterized by noncaseating granulomas in affected tissues. It most commonly involves the lungs but can affect other organs. The cause is unknown but genetic and environmental factors are thought to play a role. Diagnosis is made through biopsy showing granulomas and excluding other causes. Treatment involves corticosteroids for organ involvement. Prognosis is generally good with remission occurring within 3 years for over half of patients.
Diffuse alveolar haemorrhage (DAH) is characterized by bleeding into the alveolar spaces caused by disruption of the alveolar-capillary basement membrane due to injury or inflammation of the small blood vessels in the lungs. Common initial symptoms include cough, hemoptysis, fever, and dyspnea. Diagnostic tests show increased DLCO on PFTs and progressively more hemorrhagic bronchoalveolar lavage samples. Treatment focuses on treating the underlying cause with glucocorticoids as the mainstay along with additional immunosuppressive agents or plasma exchange depending on the cause.
This document discusses interstitial lung disease (ILD) associated with connective tissue diseases (CTDs). It begins by providing background on ILD and defining common presentations. It then discusses the classification of ILD and patterns associated with different CTDs. Common CTDs that can cause ILD are described such as systemic sclerosis, rheumatoid arthritis, and polymyositis/dermatomyositis. Risk factors, pathophysiology, epidemiology, clinical presentation, investigations including radiography and antibodies, and biomarkers for ILD associated with CTDs are summarized. Specific CT features that can help differentiate CTD-ILD from idiopathic pulmonary fibrosis are also outlined.
This document provides information on eosinophils and pulmonary eosinophilic syndromes. It discusses the classification of pulmonary eosinophilic syndromes including Loeffler's syndrome, drug-induced pulmonary eosinophilia, idiopathic acute eosinophilic pneumonia, tropical pulmonary eosinophilia, and chronic eosinophilic pneumonia. For each condition, it describes the clinical features, investigations, treatment, and prognosis. Radiographic and microscopic images are also included to illustrate common findings.
Sarcoidosis is a multisystem disorder characterized by non-caseating granulomas that commonly affect the lungs and lymph nodes. It most often occurs in adults under 40 years old and has a higher prevalence in African Americans. While the exact cause is unknown, it involves an abnormal immune response in genetically predisposed individuals. Lung involvement is present in 90% of cases and lymph node involvement in 70% of cases. Pulmonary sarcoidosis ranges from asymptomatic hilar lymphadenopathy to progressive pulmonary fibrosis. Skin and eye involvement also occurs in a significant portion of patients.
Cavitary lung lesions can have various causes including cancer, infection, autoimmune disease, vascular embolism, and trauma. On imaging, characteristics like wall thickness, inner contour, location, and other associated findings provide clues to the underlying etiology. Malignant processes tend to have thicker walls over 15mm while benign lesions usually have thinner walls under 4mm. Infectious cavities often have irregular inner walls and may contain fluid levels. Autoimmune diseases typically cause multiple bilateral nodules. The clinical context is also important for determining the most likely diagnosis.
Lymphangioleiomyomatosis (LAM) is a rare lung disease that affects premenopausal women. It involves the proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs, lymphatic system, and kidneys. This leads to cyst formation in the lungs and lymphatic obstruction, causing symptoms like shortness of breath, pneumothorax, chylous ascites, and lymphangioleiomyomas. The disease has links to tuberous sclerosis complex and is exacerbated by estrogen. Diagnosis involves imaging and biopsy to identify LAM cells. Treatment focuses on managing symptoms, with lung transplantation as a last resort.
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive fibrosing interstitial pneumonia of unknown cause that primarily affects older adults. It is characterized by scarring (fibrosis) of the lungs that gets worse over time. The diagnosis of IPF requires the exclusion of other known causes of lung fibrosis and the presence of a usual interstitial pneumonia pattern on HRCT or lung biopsy. High-resolution CT is an essential tool that typically shows subpleural reticulation and honeycombing. Pulmonary function tests reveal a restrictive ventilatory defect. The cause remains unknown but genetic factors and environmental exposures may play a role.
Sarcoidosis and IgG4-related diseases are inflammatory conditions characterized by granuloma formation. Sarcoidosis is a multisystem disorder involving lungs in over 90% of cases and skin, eyes, and liver in about a third of patients each. It is thought to be triggered by an infectious or environmental agent in a genetically susceptible host. IgG4-related disease is a fibroinflammatory condition that can affect virtually any organ, forming tumefactive lesions. Treatment for both conditions typically involves corticosteroids, with immunosuppressants used for chronic or resistant cases.
Sarcoidosis is a multisystem disorder characterized by non-caseating granulomas. It most commonly affects the lungs (90% of cases) and lymph nodes (70% of cases). The pathogenesis involves an abnormal immune response in genetically predisposed individuals, leading to granuloma formation. Clinically, sarcoidosis often presents as asymptomatic bilateral hilar lymphadenopathy on chest imaging. Lung involvement can range from isolated interstitial involvement to fibrosis. Skin and eye involvement are also common. The diagnosis is made by biopsy demonstrating non-caseating granulomas in the absence of infections or malignancy. The course is variable but most cases resolve spontaneously without sequelae.
- Pulmonary complications are common in acute pancreatitis and include hypoxia, atelectasis, ARDS, and pleural effusions.
- Inflammatory mediators released during pancreatitis like trypsin, phospholipase A2, and TNF-α can damage the lungs and impair oxygenation.
- Pulmonary complications occur in three stages - stage 1 involves hypoxia with no radiological abnormalities, stage 2 adds radiological findings like pleural effusions or infiltrates, and stage 3 is ARDS which has a high mortality rate. Aggressive management of oxygenation and underlying pancreatitis is important.
This document provides an overview of interstitial lung disease (ILD). It discusses the pulmonary interstitium and pathogenesis of ILD. It reviews the classification of ILD and differentiates between known and idiopathic causes. Common ILDs include idiopathic pulmonary fibrosis, nonspecific interstitial pneumonia, desquamative interstitial pneumonia, and cryptogenic organizing pneumonia. A thorough clinical assessment involves obtaining a detailed history, physical exam, radiographs, pulmonary function tests, and potentially tissue sampling.
Hypersensitivity pneumonitis is an interstitial lung disease caused by an inflammatory response to inhaled antigens. It has a prevalence of around 0.5-3% and is diagnosed based on criteria including exposure history, symptoms, imaging and pathology findings. The pathophysiology involves type III and IV hypersensitivity reactions mediated by CD8+ T cells, antibodies and granuloma formation. Diagnosis relies on clinical criteria, imaging, pulmonary function tests, BAL and biopsy. Treatment involves antigen avoidance and corticosteroids. Prognosis depends on stage of disease at presentation and ability to remove causal antigen exposure.
Sarcoidosis is a systemic granulomatous disease of unknown cause that commonly involves the lungs. It occurs worldwide and is characterized by the formation of non-caseating granulomas in affected organs. While the cause is unknown, it is believed to involve a dysregulated immune response in genetically susceptible individuals. Clinical manifestations vary depending on the organs involved but commonly include respiratory symptoms as well as skin and eye lesions. Diagnosis involves clinical and radiological evidence of granulomatous inflammation along with exclusion of other potential causes. Prognosis is generally good with many patients experiencing resolution of symptoms within a few years.
This document discusses idiopathic interstitial pneumonias other than idiopathic pulmonary fibrosis. It provides the revised ATS/ERS classification of idiopathic interstitial pneumonias and describes non-specific interstitial pneumonia (NSIP) and cryptogenic organizing pneumonia (COP) in detail. NSIP is characterized by a uniform pattern of interstitial inflammation and fibrosis. It commonly occurs in connective tissue diseases and has a good prognosis with treatment. COP is defined by organizing pneumonia in the absence of an identifiable cause, and presents with patchy consolidations that are typically peripheral and migratory.
Pulmonary alveolar proteinosis is a rare lung disease characterized by abnormal accumulation of lipoproteinaceous material in the alveoli. It was first diagnosed in 1958. The accumulation is caused by a defect in clearance by alveolar macrophages or increased surfactant production. Secondary causes include lung infections, inhalation of toxins, and hematological malignancies. Symptoms vary from asymptomatic to cough, dyspnea, and respiratory failure. Diagnosis involves imaging showing characteristic patterns and analysis of material obtained by bronchoscopy or biopsy showing accumulation of lipoproteins in the alveoli. Treatment options include steroids, whole lung lavage, and treating any underlying causes. Prognosis is generally good with treatment
- Bronchopulmonary sequestration is a rare congenital abnormality where non-functioning lung tissue receives blood supply from the systemic circulation rather than the pulmonary circulation.
- It can be intralobar, located within a normal lung lobe, or extralobar, located outside the normal lung with its own pleura.
- Presentation depends on type, size, and location but includes respiratory distress in infants or recurrent pulmonary infections. Chest imaging finds a dense lung mass and CT/MRI identify the aberrant blood supply.
- Surgical resection is recommended for symptomatic cases or high-risk asymptomatic cases to prevent complications like infection. Small extralobar cases may be observed.
Sarcoidosis is a systemic granulomatous disease of unknown cause that most commonly involves the lungs and intrathoracic lymph nodes. It can affect any organ and presents variably from asymptomatic to acute symptoms like fever and weight loss. Lung involvement is common and is staged based on chest x-ray findings. Skin, eye, and musculoskeletal involvement also occur. The diagnosis involves ruling out other causes through biopsy showing non-caseating granulomas and clinical/radiological findings. Treatment focuses on symptomatic cases using steroids or immunosuppressants for severe or organ-threatening disease.
Dr. Sagar Gandhi presented on SLE-related lupus pneumonitis. SLE is an autoimmune disease that can cause inflammation in the lungs called lupus pneumonitis. Symptoms include chest pain, cough, and shortness of breath. Diagnosis involves clinical exams, labs, imaging tests and ruling out other causes. Treatment depends on severity but may include NSAIDs, steroids, immunosuppressants, and managing infections. Complications can include pleural effusions, lung infections, diffuse alveolar hemorrhage, interstitial lung disease, pulmonary hypertension, and shrinking lung syndrome. Close monitoring is needed to manage disease activity and prevent flare-ups.
This document discusses sexually transmitted infections (STIs) caused by Treponema pallidum (syphilis), Neisseria gonorrhoeae (gonorrhea), and Chlamydia trachomatis (chlamydia). It describes the clinical manifestations of primary, secondary, and late syphilis. It also discusses gonococcal and chlamydial infections in males and females, including urethritis, cervicitis, pelvic inflammatory disease, and disseminated gonococcal infection. The document provides details on laboratory testing, treatment, and clinical presentation of these common STIs.
Sarcoidosis is a multisystem disorder characterized by noncaseating granulomatous inflammation that can affect any organ but most commonly involves the lungs and intrathoracic lymph nodes. It has an unknown etiology but is thought to be triggered by exposure to microbial agents in genetically susceptible individuals. The pathology shows noncaseating epithelioid cell granulomas. It has variable presentation based on ethnicity and geography. Acute sarcoidosis may present with erythema nodosum while chronic sarcoidosis can lead to pulmonary fibrosis over two years.
This document provides an overview of interstitial lung disease (ILD), also known as diffuse parenchymal lung disease. It discusses the epidemiology, diagnostic approach, classification, and treatment of ILD. The diagnostic approach involves obtaining a thorough history, physical exam, pulmonary function tests, imaging like chest X-rays and HRCT, and tissue sampling via bronchoscopy or surgical lung biopsy. ILDs can be classified as idiopathic interstitial pneumonias, granulomatous diseases like sarcoidosis, connective tissue disease-associated, and those related to occupational or environmental exposures. Treatment depends on the underlying cause but may include immunosuppression, antifibrotic drugs, managing comorbid
A RARE CASE OF THE GREAT IMITATOR IN DERMATOLOGY-SARCOIDOSIS.pptxSujataDora2
This document presents a case of sarcoidosis, a rare granulomatous disease of unknown etiology. A 36-year-old man presented with asymptomatic red raised lesions on his forearm that rapidly spread to his upper limbs and trunk over 3-4 months. Investigations revealed bilateral hilar lymphadenopathy on chest X-ray and non-caseating granulomas on skin biopsy consistent with sarcoidosis. The patient was started on oral steroids and vitamin supplements, with improvement seen after 1 month of treatment. Sarcoidosis can mimic other conditions and manifest in various organs, making it an important diagnostic consideration.
This document discusses the diagnosis of interstitial lung disease (ILD). It defines ILD as a collection of over 100 lung disorders that share clinical, radiographic, and pathological features. ILD is classified based on patterns seen on histology and radiography. Risk factors include age, smoking, occupation, and family history. Signs and symptoms include dyspnea, cough, chest pain, and digital clubbing. Diagnostic tests involve pulmonary function tests, chest imaging like HRCT, bronchoscopy, and surgical lung biopsy. HRCT is more sensitive than chest x-rays and can identify patterns like ground glass opacities and cysts that indicate different diseases.
Reactive arthritis is an inflammatory arthritis that can be triggered by infections in the gastrointestinal or genitourinary tracts. It is characterized by acute onset of asymmetric arthritis, particularly in the lower limbs. It is associated with HLA-B27 positivity and symptoms may include conjunctivitis, urethritis, keratoderma blennorrhagica rash. Treatment involves antibiotics for triggering infections, NSAIDs, and DMARDs for persistent symptoms. Psoriatic arthritis is a related condition where arthritis develops in individuals with psoriasis, and involves joint inflammation as well as nail changes and dactylitis.
This document discusses surgical infections of the thorax, including pathology, investigations, treatments, and specific conditions. It covers topics such as the stages of empyema (exudative, fibrino purulent, organizing), classifications of inflammatory diseases of the thorax (infections of the container vs contents), and treatments for specific infections like tuberculosis of the ribs and actinomycosis. Empyema treatment options discussed include antibiotics, tube thoracostomy, fibrinolytic therapy, VATS, rib resection, decortication, and thoracoplasty.
Sjögren's syndrome is an autoimmune disease that causes inflammation of the exocrine glands, most commonly the salivary and lacrimal glands, leading to dry eyes and dry mouth. It exists as either a primary form that occurs alone or a secondary form associated with other connective tissue diseases like rheumatoid arthritis. Diagnosis involves evaluating symptoms of dry eyes and dry mouth along with tests like salivary gland biopsy, salivary flow tests, and lab tests for autoantibodies. Treatment focuses on managing symptoms while complications can involve other organ systems.
This document discusses HIV and its effects on the ENT system. It begins by explaining what HIV is and how it attacks the immune system. It then discusses the epidemiology of HIV and current global statistics. Various opportunistic infections that can affect the ENT system are described, including fungal infections of the ear, sinusitis, neoplasms like Kaposi's sarcoma, and lymphomas of the nose and oral cavity. Manifestations in different areas like the ear, nose, oral cavity and airways are summarized. Risk groups, disease progression, and treatment approaches are also briefly covered.
Neuroblastoma is the most common extracranial solid tumor in children. It arises from neural crest cells that form the adrenal medulla and sympathetic ganglia. Over half of children present with metastatic disease. Risk factors include genetic predispositions and exposure to chemicals during pregnancy. Clinical features vary depending on tumor location but may include abdominal mass, bone pain, or eye symptoms. Treatment involves surgery, chemotherapy, and sometimes radiation. Prognosis depends on age, stage, and biological features of the tumor.
Syphilis is caused by the bacterium Treponema pallidum and is transmitted sexually or from mother to fetus. It progresses through primary, secondary, latent, and tertiary stages if left untreated. Primary syphilis causes a chancre at the infection site. Secondary syphilis symptoms may include a rash, fever, and lymphadenopathy. Latent syphilis is asymptomatic but seropositive. Tertiary syphilis can cause damage to the heart, brain, and other organs through conditions like tabes dorsalis, general paresis, and gummas. Syphilis also increases the risk of HIV transmission. Proper treatment can cure syphilis at any stage.
Sjögren syndrome primarily affects women in their 40s-50s and is characterized by dry eyes and dry mouth due to reduced tear and saliva production. It has a variety of systemic manifestations involving organs like lungs, kidneys, blood vessels, and nerves. Diagnosis involves tests of tear and saliva function along with labial gland biopsy showing lymphocytic infiltrates. Treatment focuses on symptom relief and immunosuppression for severe extraglandular disease.
8-Guideline for elaborate SLE management.pptBosan Khalid
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2. SLE most commonly affects women of childbearing age and has a variety of clinical manifestations involving the skin, joints, kidneys, and other organ systems.
3. Diagnosis involves assessing clinical signs and symptoms along with serological tests like ANA and anti-DNA antibodies. Disease activity and organ involvement help guide treatment approaches.
Sarcoidosis is a chronic inflammatory disease characterized by the formation of non-caseating granulomas in multiple organs, most commonly affecting the lungs. It has unknown causes but is thought to involve genetic and environmental factors. Historically, it was first described in the skin in 1899 and was later found to also affect the lungs and lymph nodes. It presents variably from being asymptomatic to causing respiratory symptoms or lesions in other organs. Diagnosis involves clinical features, chest imaging typically showing bilateral hilar lymphadenopathy, and biopsy demonstrating granulomas. Treatment involves observation of asymptomatic cases but corticosteroids for symptomatic or progressive disease. Prognosis is generally good with many cases resolving spontaneously but advanced lung fibrosis can occasionally occur
This document provides information on dermatological syndromes and eczema. It begins with objectives of recognizing common eczema signs and symptoms, making differential diagnoses, and understanding disease evolution. It then covers skin components and cell junctions. Eczema is defined as a recurrent inflammatory skin condition characterized by dry, itchy skin that can affect all ages. Differential diagnoses for eczema include infections, psoriasis, and contact dermatitis. Etiology is multifactorial involving genetic susceptibility and environmental triggers. Pathophysiology involves impaired skin barrier function and immune responses mediated by Th2 cells. Scoring systems like EASI are used to measure severity.
Sarcoidosis is a multisystem disorder characterized by noncaseating granulomas. It is diagnosed when granulomas are seen histologically and other causes have been excluded. The lungs are commonly involved, presenting with hilar lymphadenopathy and infiltrates. Skin, eyes, and liver are also frequently affected. Treatment involves corticosteroids to prevent fibrosis in severe or progressive cases. Prognosis is variable, with spontaneous remission in about two-thirds of patients.
Scleroderma is an autoimmune connective tissue disease that causes hardening of the skin and internal organs. It is classified into limited and diffuse subtypes based on the extent of skin involvement. Raynaud's phenomenon, skin thickening, and pulmonary and gastrointestinal issues are common clinical manifestations. The underlying pathogenesis involves vascular dysfunction, immune dysregulation, and fibrosis. Management focuses on treating individual organ system complications. Prognosis depends on the specific organ systems affected and can range from relatively mild to severe with significant morbidity and mortality.
Computer in pharmaceutical research and development-Mpharm(Pharmaceutics)MuskanShingari
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Examples-Measures of central tendency Dispersion, Variance, Standard Deviation (SD), Absolute Error, Mean Absolute Error (MAE), Eigen Value
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdfrightmanforbloodline
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Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Lecture 6 -- Memory 2015.pptlearning occurs when a stimulus (unconditioned st...AyushGadhvi1
learning occurs when a stimulus (unconditioned stimulus) eliciting a response (unconditioned response) • is paired with another stimulus (conditioned stimulus)
Nano-gold for Cancer Therapy chemistry investigatory projectSIVAVINAYAKPK
chemistry investigatory project
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Cancer remains one of the leading causes of death worldwide, prompting the need for innovative treatment methods. Nanotechnology offers promising new approaches, including the use of gold nanoparticles (nanogold) for targeted cancer therapy. Nanogold particles possess unique physical and chemical properties that make them suitable for drug delivery, imaging, and photothermal therapy.
STUDIES IN SUPPORT OF SPECIAL POPULATIONS: GERIATRICS E7shruti jagirdar
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DECLARATION OF HELSINKI - History and principlesanaghabharat01
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Travel vaccination in Manchester offers comprehensive immunization services for individuals planning international trips. Expert healthcare providers administer vaccines tailored to your destination, ensuring you stay protected against various diseases. Conveniently located clinics and flexible appointment options make it easy to get the necessary shots before your journey. Stay healthy and travel with confidence by getting vaccinated in Manchester. Visit us: www.nxhealthcare.co.uk
Osvaldo Bernardo Muchanga-GASTROINTESTINAL INFECTIONS AND GASTRITIS-2024.pdfOsvaldo Bernardo Muchanga
GASTROINTESTINAL INFECTIONS AND GASTRITIS
Osvaldo Bernardo Muchanga
Gastrointestinal Infections
GASTROINTESTINAL INFECTIONS result from the ingestion of pathogens that cause infections at the level of this tract, generally being transmitted by food, water and hands contaminated by microorganisms such as E. coli, Salmonella, Shigella, Vibrio cholerae, Campylobacter, Staphylococcus, Rotavirus among others that are generally contained in feces, thus configuring a FECAL-ORAL type of transmission.
Among the factors that lead to the occurrence of gastrointestinal infections are the hygienic and sanitary deficiencies that characterize our markets and other places where raw or cooked food is sold, poor environmental sanitation in communities, deficiencies in water treatment (or in the process of its plumbing), risky hygienic-sanitary habits (not washing hands after major and/or minor needs), among others.
These are generally consequences (signs and symptoms) resulting from gastrointestinal infections: diarrhea, vomiting, fever and malaise, among others.
The treatment consists of replacing lost liquids and electrolytes (drinking drinking water and other recommended liquids, including consumption of juicy fruits such as papayas, apples, pears, among others that contain water in their composition).
To prevent this, it is necessary to promote health education, improve the hygienic-sanitary conditions of markets and communities in general as a way of promoting, preserving and prolonging PUBLIC HEALTH.
Gastritis and Gastric Health
Gastric Health is one of the most relevant concerns in human health, with gastrointestinal infections being among the main illnesses that affect humans.
Among gastric problems, we have GASTRITIS AND GASTRIC ULCERS as the main public health problems. Gastritis and gastric ulcers normally result from inflammation and corrosion of the walls of the stomach (gastric mucosa) and are generally associated (caused) by the bacterium Helicobacter pylor, which, according to the literature, this bacterium settles on these walls (of the stomach) and starts to release urease that ends up altering the normal pH of the stomach (acid), which leads to inflammation and corrosion of the mucous membranes and consequent gastritis or ulcers, respectively.
In addition to bacterial infections, gastritis and gastric ulcers are associated with several factors, with emphasis on prolonged fasting, chemical substances including drugs, alcohol, foods with strong seasonings including chilli, which ends up causing inflammation of the stomach walls and/or corrosion. of the same, resulting in the appearance of wounds and consequent gastritis or ulcers, respectively.
Among patients with gastritis and/or ulcers, one of the dilemmas is associated with the foods to consume in order to minimize the sensation of pain and discomfort.
These lecture slides, by Dr Sidra Arshad, offer a simplified look into the mechanisms involved in the regulation of respiration:
Learning objectives:
1. Describe the organisation of respiratory center
2. Describe the nervous control of inspiration and respiratory rhythm
3. Describe the functions of the dorsal and respiratory groups of neurons
4. Describe the influences of the Pneumotaxic and Apneustic centers
5. Explain the role of Hering-Breur inflation reflex in regulation of inspiration
6. Explain the role of central chemoreceptors in regulation of respiration
7. Explain the role of peripheral chemoreceptors in regulation of respiration
8. Explain the regulation of respiration during exercise
9. Integrate the respiratory regulatory mechanisms
10. Describe the Cheyne-Stokes breathing
Study Resources:
1. Chapter 42, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 36, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 13, Human Physiology by Lauralee Sherwood, 9th edition
4. INTRODUCTION
• Multisystem non-caseous granulomatous disorder
of unknown aetiology
• Characterized by depression of cutaneous delayed
type hypersenstivity and heightened Th1 immune
response in affected organs.
• Most commonly affecting young adults
• Presenting most frequently with bilateral hilar
lymphadenopathy, pulmonary infiltration and skin
or eye lesions.
5. EPIDEMIOLOGY
• Occurs worldwide
• Highest incidence - United States and
Sweden.
• Lower - Asian
• Prevalence - 10 and 40 cases per 100,000
• Mortality - 1 to 5 percent
6. • Environmental exposures - winter and early
spring months
• Geographic variation and time–space clustering
• Occupational association- health care
professionals,firefighters, military personnel.
7. • Age : 20-40 yr
• Sex : female ; bimodal
• 16 times more common in blacks
• Genetic influence
monozygotic : dizygotic twins (13: 1)
8. AETIOLOGY
• Unknown
• Exposure to pine pollen or beryllium
• Infection with Mycobacterium, viruses and
fungi
• protoplast or L form of the tubercle bacillus
may be a cause of sarcoidosis
9. ACCESS STUDY
• A Case Control Etiologic Study of Sarcoidosis
• 706 subjects
• Absence of occupational and environmental
association
• Weak assoc-insecticide;mold;musty odour
• No association-berylium;wood ;rural; smoking
• No single dominant factor
• Gene environmental factors
11. • Borrelia
• Chlamydiae
• Rickettsiae
• Viruses : EBV,CMV,herpes 6
• High titres of these viruses may be reflect
generalised B cell activation in sarcoidosis
14. GENETICS
• STRONG EVIDENCE
• ACCESS STUDY
• Siblings are higher risk than parents
• More of mother-child than father-child
associations.
15. ROLE OF HLA
• HLAB 8 – most consistently associated.
• HLA-B1,B8, DR3- also associated with abnormal
immune responsiveness.
• DR1, DR 4 – protective.
• HLA-B8, DR3, Cw7 associated with good
prognosis in caucasians.
• Other alleles are associated with chronic disease,
favorable outcomes.
16.
17. Non-HLA genes:
• TNF genes(polymorphisms associated
with 1.5 fold increased risk)
• CC chemokine receptors.
• ACE complement receptor 1.
• German study – Chromosome 6
• SAGA study – Chromosome 5
21. • IL-12 contributes to proliferation of activated T
cells in early disease.
• Increased levels of IL-12 and IL-18 stimulate
IFN-gamma production.
• TGF-beta inhibits IL-12 and IFN-
gammadownregulation of granulomatous
inflammation in sarcoidosis.
• Elevated levels of IL-6 and IL-8 in BAL in active
sarcoidosis.
22. HISTOPATHOLOGY
• The pathologic hallmark is presence of non
caseating
epitheloid cell granuloma.
• Active sarcoidosis has nodular collections of large
closely packed, pale-staining histiocytes -
epithelioid cells with giant cells.
• Necrosis doesn’t occur.
• Electron microscopy showed that epitheloid cells
tend to be central and macrophages peripheral.
• As lesion ages, reticulin fibres between epitheloid
cells ramify and converted to collagen.
23. The cytoplasm of giant cells have inclusion bodies
1) Schaumann bodies- round or oval and vary in size from
that of a leucocyte to about 100μm in diameter.The larger
of these bodies ( conchoid bodies) seem to be formed of
basophilic concentric lamellae that appear to contain
calcium and iron
2) Doubly refractile crystalline inclusion bodies are 1–20 μm
in diameter and may take up stains for calcium and iron.
3) Asteroid bodies consist of a central mass 2.3–3μm in
diameter with radiating straight or centred spinous
projections, the whole being 5–25μm in diameter
4) Hamazaki wesenberg bodies.
27. Histological features of sarcoid lesionare
not specific. Can also be seen in
• tuberculosis
• leprosy
• tertiary syphilis
• brucellosis
• primary biliary cirrhosis
• hypogammaglobulinemia
• Brucellosis
• fungal infections.
28.
29.
30. CLINICAL PRESENTATION
Acute Sarcoidosis
• Lofgren's syndrome - acute erythema nodosum
with
bilateral hilar lymphadenopathy, fever, and
polyarthritis, non granulomatous uveitis
• Symptoms are typically abrupt in onset and have a
transient course.
• A vesicular or maculopapular rash, acute iritis,
conjunctivitis, and Bell's palsy may also be features
of acute disease
31. CHRONIC SARCOIDOSIS
• More gradual, insidious onset, is more likely to
develop chronic disease.
• Other risk factors for chronic disease include the
presence of lupus pernio, which is a persistent,
disfiguring, violaceous rash over the nose, cheeks,
and ears, and the presence of multiorgan involvement
at the time of diagnosis.
• Chronic eye involvement includes chronic uveitis,
cataracts, glaucoma, or keratoconjunctivitis sicca,which
can be confused with Sjogren's syndrome
35. LUNGS
First site involved
• Begins with alveolitis involving small bronchi
and small blood vessels
• Alveolitis either clears up spontaneously or
leads to granuloma and fibrosis.
36. Around 50% patients asymptomatic.
• Dry cough and dyspnoea
• Chest pain-rare
• Wheezing secondary to endobronchial disease,
extrinsic compression by lymphadenopathy or
bronchial distrortion secondary to fibrosis.
• Productive cough- traction bronchiectasis
• Hemoptysis- bronchiectasis or aspergilloma
37.
38.
39. RADIOGRAPHIC FEATURES
• Chest radiograph abnormal in 90% of sarcoidosis
patients.
• Bilateral hilar lymphadenopathy in 50-85%cases.
• Lymph nodes big and sharply defined with clear line
of transluscency between mediastinum and lymph
nodes- POTATO NODES.
• Unilateral lymphadenopathy- rare
• Pulmonary infiltrates in 25-60% cases
40. SCADDING STAGING SYSTEM
• Stage 0: Absence of radiographic abnormalities
• Stage I: Bilateral hilar and/or mediastinal adenopathy
without pulmonary parenchymal abnormalities
• Stage II: Hilar and/or mediastinal lymphadenopathy
with pulmonary parenchymal abnormalities (generally
a diffuse interstitial pattern)
• Stage III: Diffuse parenchymal disease with out nodal
enlargement
• Stage IV: Pulmonary fibrosis with evidence of volume
loss, cystic or honeycomb changes, bullae, emphysema.
51. ADENOPATHY AT TIME OF DIAGNOSIS
Marked enlarged hilar and mediastinal
lymph nodes
52. Radiographic abnormalities on chest x ray.
• 1) disseminated miliary lesions
• 2) disseminated nodular lesions
• 3) linear type of infiltration extending fan-wise from the hilum
• 4) diffuse and confluent patchy shadows;
• 5) diffuse fibrosis
• 6) diffuse fibrosis with cavitation
• 7) diffuse ground-glass shadowing
• 8) changes similar to chronic tuberculosis as regards location
and distribution
• 9) bilateral confluent massive opacities resembling areas of
pneumonia
• 10) atelectasis.
54. HRCT findings in Sarcoidosis.
• Common findings:
– Small nodules in a perilymphatic distribution
(i.e. along subpleural surface and fissures, along
interlobular septa and the peribronchovascular
bundle).
– Upper and middle zone predominance.
– Lymphadenopathy in left hilus, right hilus and
paratracheal (1-2-3 sign). Often with
calcifications.
58. Uncommon findings:
– Conglomerate masses in a perihilar location.
– Larger nodules (> 1cm in diameter, in < 20%)
– Grouped nodules or coalescent nodules
surrounded by multiple satellite nodules (sarcoid
galaxy sign)
• Nodules so small and dense that they appear as
ground glass or even as consolidations (alveolar
sarcoidosis)
• Reverse halo sign
61. GALLIUM 67 SCAN
• Gallium 67 concentrated in metabolically and mitotically
active tissues.
• Intravenous injection of 11X107 Bq of gallium 67 citrate,
simultaneous anterior and posterior scans performed 3 days
later.
• Close correlations between gallium uptake and total number
of lymphocytes recovered in BAL.
• Not specific for sarcoidosis.
• Expensive and radiation exposure.
62. the parotid, salivary and lacrimal gland
region (panda sign) is pathognomic for
sarcoidosis
65. Other Intrathoracic Manifestations
Pleural invovlment in 5-10% cases.
( effusions and pleural thickening)
• Aspergilloma
• Bronchiectasis
• Necrotising sarcoid angitis
• Superior venacaval syndrome
• Mediastinal lymph node calcification
• Mediastinal fibrosis
• Vanishing lung syndrome (giant bulla)
66. Functional abnormalties
• Seen in 20%-40% in patients with normal chest x
ray and 50%-70% when x ray is visibly abnormal.
• Abnormalities in vital capacity, diffusion
capacity, PaO2 at rest, PaO2 at exercise and lung
compliance.
• Usually restrictive defect noted on PFT but
obstructive defect in endobronchial
involvement leading to airflow obstruction, also
from airway distortion secondary to lung fibrosis
68. UPPER RESPIRATORY TRACT
Uncommon but disabling.
• Nasal mucosa- crusting,obstruction, discharge. The
mucosa erythematous and granular with polypoid
hypertrophy.
• Laryngeal and pharyngeal mucosa- hoarseness,cough,
dysphagia,dypsnoea
• Patients with sarcoidosis of upper respiratory tract
have 50% chance of developing lupus pernio
• Nasal septal and palatal perforations in untreated
cases.
• d/d tuberculosis, wegeners granulomatosis, leprosy
69. KRESPI STAGING SYSTEM
• Stage I : mild nasal disease without paranasal sinus
disease. - saline nasal spray, nasal irrigation, and topical
nasal steroids.
• Stage II : moderate disease, with involvement of both
nasal and paranasal sinuses; it is typically treated with
both stage I therapy and intralesional steroids.
• Stage III : severe, often irreversible, nasal and sinus
disease that usually requires the therapeutic
interventions of stages I and II, as well as systemic
therapy.
70. LYMPHATIC SYSTEM
• Hilar and Mediastinal lymph nodes (>90% of
patients)
• Peripheral lymphadenopathy (5%–30%).
• Cervical, axillary, epitrochlear, and inguinal
regions.
• Non tender, mobile
• Of superficial nodes, right scalene group most
common
71. EYES
• Upto 25% of sarcoidosis patients ant uveitis most
common manifestation.
• Anterior uveitis - acutely, with pain, photophobia,
lacrimation, and redness, self limiting
• Posterior uveitis is typically gradual in onset and is
more likely to result in visual morbidity, chronic form of
disease.
• Chronic uveitis leads to glaucoma, cataracts and
blindness ,Keratoconjunctivitis sicca Papilledema
• 10% of patients with sarcoid-associated uveitis
develop blindness in at least one eye
76. SKIN
• Most common manifestation- erythema nodosum.
• Erythema nodosum typically presents as raised, tender, red
nodules, 1 to 2 cm in diameter, on the anterior surface of the
lower legs.
• Lupus pernio is a rare lesion,most severe dermatological
manifesation - purplish plaques typically found over the
nose, cheeks, lips, and ears. Associated with poor prognosis
and severe pulmonary disease.
• Skin abnormalities include red-brown to orange macules and
papules, keloids, and hyper- or hypopigmentation.
77. LOFGREN'S SYNDROME; acute triad of
erythema nodosum,polyartropathy, bilateral
hilar adenopathy and non granulomatous
uveitis
82. LIVER
• 33% have hepatomegaly or biochemical
evidence of disease
• Symptoms usually absent
• Cholestasis, fibrosis, cirrhosis, portal
hypertension, and the Budd-Chiari syndrome
have been seen
83. MUSCULOSKELETAL
• Bone involvement most commonly affects terminal
phalanges of hands and feet and proximal bones in
severe cases.
• Three types of bony lesions:
Lytic
Permeative
Destructive
• Bone lesions not affected by corticosteroids
84. PUNCHED OUT LYTIC LESIONS
Focal osteolytic lesions in the fingers are
most common abnormality
86. • Subcutaneous swellings also noted along with
digit abnormalities but they respond to
corticosteroid therapy.
• Skeletal granulomas commonly affecting
pectoral,shoulder, arm and calf muscles
87. NERVOUS SYSTEM
• Peripheral neuropathy or mononeuritis multiplex
• Cranial nerve palsy- 7th nerve facial palsy is most
common (sarcoidosis is most common cause of
bilateral facial nerve palsy)
Acute, transient, and can be unilateral or bilateral
HEERFORDT'S SYNDROME: facial palsy accompanied
by fever, uveitis, and enlargement of the parotid gland
• Lymphocytic meningitis
• Meningoencephalitis
• SOLs
• Epilepsy
• Brain stem and spinal cord syndromes
88. • Hematopoietic system: splenomegaly common
• Genitourinary system: nephrocalcinosis due to
unexplained increase in senstivity to vitamin D
leading to increased absorption of calcium from
gut.
• Rarely glomerulonephritis and sarcoidosis of
epididymis.
89. CARDIAC
• Extensive pulmonary fibrosis leading to cor
pulmonale.
• Involvement of myocardium leading to dysrhythmias,
conduction disorders, heart failure and sudden death.
• PAH may occur due to parenchymal fibrosis distorting
the pulmonary vasculature, granulomatous
inflammation of pulmonary vasculature,hypoxic
pulm arterial vasoconstriction and from elevated left
ventricular diastolic pressure of cardiac involvement
90. ATS criteria diagnosis of
pulmonary sarcoidosis
(1) Presence of a consistent clinical and
radiographic picture
(2) Demonstration of noncaseating granulomas
on biopsy
(3) Exclusion of other conditions that can
produce granulomatous inflammation
91. Recommended Test for all patients :
• Complete blood count with differential count
• Chest radiograph
• PFT-spirometry, diffusion capacity, lung volumes
• Ophthalmologic examination
• Complete metabolic profile
• ECG
• PPD skin test. (<10mm reaction to 5TU has 100%
sensitivity but not specific. About 2/3rd of patients
with active disease fail to react to 100TU and 1/4th
to 100TU and less than 1/10th to 10TU.)
• Serum & Urine Calcium
92. Organ Specific Test :
Cardiac-
• ECG
• Holter monitoring
• Thalium or sestamibi myocardial scan
• Cardiac MRI
• Cardiac PET.
Neurologic-
• Brain or spine MRI with gadolinium enhancement
• CSF examination
• EMG or nerve conduction studies.
93. URT :
Flow-volume loop
ENT evaluation.
X-Ray PNS
CT Scan PNS
Endocrine :
Pituitary function test
Thyroid profile.
Biopsy :
Tissue biopsy is essential.
Biopsy almost always +ve if skin, lymphnodes,
conjunctiva involved accessible sites.
94. • Transbronchial lung biopsy is usually performed
because high yield and relative safe.
• The diagnostic yield of TBLB is ranges 40-90% if
atleast 4 biopsies are taken.
• Higher yield if pulmonary infiltrates an CXR or CT
scan shows.
• TBLB in advanced fibrocystic sarcoidosis has a
low yield.
• TBNA has diagnostic sensitivity of 100%
• Combining EBUS with TBNA increases the
sensitivity
95. BAL Findings
• Increased lymphocytes.
• Raised CD4: CD8 ratio >3.5 to 4.0 supports the diagnosis of
sarcoidosis.
• When FOB is non diagnostic – Mediastionscopy, VATS
• Open lung biopsy establish the diagnosis at >90% diagnostic yield.
• For organs that are difficult to biopsy image techniques such as
gallium 67 scan or more recently 18F – fluoro deoxyglucose position
emmison tomography (FDG-PET) may help.
• F-methyltyrosine-PET uses amino acids that is preferentially taken up
and expressed on tumor cells and is negative in sarcoidosis
96. • Tissues from mediastinoscopy +ve in 95%.
• Scalene lymph node biopsy positive in 80
97. Serum ACE levels (SACE levels) :
Libermann first to report raised ACE in sarcoidosis
• Produced by epitheloid cells.
• Elevated in 30 to 80% of patients.
• Elevated levels are seen in infections , graulomatous
disease, lymphoma, hepatitis, DM, thyroid disease.
Thus SACE is not recommended as a diagnostic test.
• Neither sensitive nor specific to be used as a
diagnostic tool.
• Provides good monitor of disease activity
98. Kveim-stiltzbach test :
Intradermal injection of homogenised tissue of organs
involved with sarcoidosis causes delayed cutaneous
reaction in 4 – 6 weeks.
Method of testing
• The test is performed by injecting intradermally 0.1- 0.2
ml of suspension of human sarcoid tissue , usually
obtained from cervical gland.
• Rarely , splenectomy for splenomegaly due to
sarcoidosis allows the preparation of large quantities of
test substance.
99. Within 2-3 wks positive test shows purplish red
nodule at the site of injection.
• Biopsy at 4- 6 wks reveals sarcoid tissue on
histological examination.
• Value of the test : false positive reactions are rare,
only 1 – 2% .
• Positive test can be regarded as a virtual proof of
active sarcoidosis.
• Positive results are obtained in 75% of patients with
clinical evidence of disease.
101. Assessment of disease activity
Best is by clinical assessment by worsening or
persistence of symptoms, with skin lesions and
changes in chest radiograph and PFTs.
• Serum ACE levels
• Others:
blood( lysozyme, neopterin,soluble IL-2 receptor)
BAL fluid(high lymphocytes, CD4/CD8 ratio, TNFalpha,
collagenase etc.,)
106. Diagnostic criteria for diagnosis of
tuberculous sarcoidosis
• Age: 25-45 years
• Gender: No gender predisposition
• History of previous tuberculosis infection which was
adequately treated with ATT with adequate drug
combinations, dosages and duration.
• H/O close contact with pt’s having tuberculosis
infection or family
• H/O tubeculosis or association with type II DM.
• Onset: Asymtomatic or with mild fever, anorexia
and loss of weight
107. • Important symtoms: Chronic cough, brethlessness
on exertion.
• Important signs: Involvement of multiple nodes, Eg-
Scalene or
• cervical group of lymph nodes, at Multiple
locations.
• B/L bibasilar end inspiratory velcrow crackles.
108. • The Marshall Protocol is a medical treatment
• While other treatments for chronic disease
use palliative medications in an effort to cover
up symptoms, the Marshall Protocol is a
curative treatment, which strives to address
the root cause of the disease process
109. TREATMENT- WHEN TO TREAT ??
• Pulmonary disease:
Stage 1 disease - Asymptomatic with or without erythema
nodosum without extrapulm disease- NO TREATMENT
Stage 2 disease without symptoms and mild functional lung
impairment- followed up without treatment
Stage 2 disease with symptoms- treated
Stage 2, asymptomatic with severe lung impairment- treated.
Stage 3 disease with or without symptoms-treated
Stage 4 disease- respond poorly or not at all to corticosteroids
or immunosuppressive therapy.
110. • Extrapulmonary disease:
Ocular, cardiac, neurological, upper airway
involvement-treated with higher doses(40-60mg/day)
Glandular, splenic, parotid, cutaneous lesions
treated with modest doses (20-30mg/day)
Hepatic no treatment required but regular follow
up required.
111. Choice of drug
Corticosteroids drug of choice.
Act by gene transcription leading to inactivation of
nuclear Factor-kappa B which inhibits synthesis of most
known cytokines.
• Prednisolone 40mg daily maximum dose recommended
for acute pulmonary sarcoidosis which is tapered after
3-6months to maintainance dose of 5-10mg/day in
patients responding to therapy with close monitoring
for relapse and treatment continued for 12months.
• Insufficient data to recommend inhalational
corticosteroids in pulmonary disease
112. Major complication of corticosteroids therapy is
osteoporosis for which calcium and vitamin D
considered after ruling out hypercalcemia and
hypercalciuria.
• Use of bisphosphonates recommended in patients
with >5mg prednisolone for >3 months.
• Others: hypertension, diabetes, increased
susceptibility to infection, mood changes, skin
thinning, cataracts, weight gain etc
113. Alternative drugs
CYTOTOXIC DRUGS:
Rationale use of cytotoxic drugs with low doses of
corticosteroids enhances efficacy and reduces toxicity.
• Methotrexate preferred 2nd line drug. 10-15mg
once a week given often in combination with
steroid therapy.
• Others: azathioprine, chlorambucil,
cyclophosphamide
114. ANTI MALARIAL DRUGS:
• Good response in upper airway, sarcoid related
hypercalcemia and neurosarcoid.
• Chloroquine and hydroxychloroquine
• Hydroxychloroquine 200-400mg daily.
• Side effects of irreversible retinopathy and
blindness. (more with chloroquine)
• Rare side effects- agranulocytosis and myopathy
115. Reports clinical improvement in refractory
neurosarcoidosis, cardiac sarcoid, upper airway
sarcoid and skin lesions.
Drugs: infliximab and adalimumab
Infliximab- 3-5mg/kg intravenous infusion on weeks
0 and 2 with repeat dose every 4-8 weeks thereafter.
Concern is reactivation of latent tuberculosis and
other opportunistic infections. And also lymphomas,
new onset and worsening of congestive cardiac
failure and demyelinating diseases
116. • Other rare drugs include:
• leflunomide, mycophenolate,colchicine,
• pentoxyfylline, cyclosporin A
117. Treat how long??
• Duration individualised based on symptoms, organ
involved and response.
• Mostly for 1 year.
• Some from 6 months to even 10 years.
• If needed for longer periods, alternate day regimen to
minimise side effects.
• Recently showed that in acute exacerbations of
pulmonary sarcoidosis a 20mg prednsiolone for 21days
improved spirometry back to baseline and improved
clinical symptoms.
118. Treatment of complications
• Sarcoidosis associated fatigue - dexmethylphenidate
hydrochloride
• Bronchiectasis - antibiotic therapy, postural drainage,
anti inflammatory therapy
• Extensive lung fibrosis - long term oxygen therapy
• Sarcoid cardiomyopathy - decongestive therapy
• Refractory neurosarcoidosis - whole brain irradiation
• Bronchostenosis following sarcoidosis- bronchoscopic
balloon dilatation with topical mitomycin C
• Pulmonary HTN- sildenafil and bosentan. Candidates
for lung transplantation
119. PROGNOSIS AND MORTALITY
Prognosis related to severity of disease.
• Mortality rates of 1-6%
• Fibrosis in lung and forced vital capacity of less than
1.5litres are predictive of death due to respiratory
failure caused by sarcoidosis.
• In survival analysis, sarcoidosis has better prognosis
at 5 years (91.6% survival) compared to other
diffuse interstitial lung diseases