Neuroradiology in multiple sclerosis
MRI in diagnosis of MS
MRI in D.D. of MS
MRI in monitoring disease progression and response to DMT
New imaging techniques
1) Adrenal scanning using radiotracers like NCL-6-I can localize adrenal gland abnormalities. Uptake patterns can help distinguish between Cushing's syndrome causes like bilateral hyperplasia vs. adenoma.
2) Adrenomedullary scintigraphy with MIBG is useful for detecting pheochromocytomas, neuroblastomas, and paragangliomas. MIBG uptake helps locate tumors and metastases with high sensitivity and specificity.
3) Both NCL-6-I and MIBG adrenal scans require patient preparation and blocking to reduce background activity, and delayed imaging allows clearer visualization of adrenal and other organ uptake.
Presentation1, radiological imaging of amyloidosis.Abdellah Nazeer
This document discusses radiological imaging findings of amyloidosis. It begins by describing the different subtypes and causes of amyloidosis. It then focuses on thoracic manifestations, describing imaging findings of lymphadenopathy, pulmonary amyloidosis including laryngotracheobronchial, localized nodular, and diffuse types. Finally, it discusses cardiac amyloidosis and associated imaging findings on modalities like CT, MRI, and echocardiography including concentric hypertrophy, thickened atrial walls, delayed enhancement patterns, and reduced systolic function.
This document discusses screening for lung cancer and its potential to reduce the global burden of the disease. It notes that lung cancer is the leading cause of cancer death worldwide. Screening high-risk individuals, defined as those aged 50-80 who are current or former heavy smokers, with annual low-dose CT scans can detect lung cancer earlier and increase survival rates. Several major studies and a meta-analysis provide evidence that lung cancer screening reduces lung cancer mortality. However, screening also carries risks of false positives, overdiagnosis, and radiation exposure. The document concludes that widespread screening has the potential to significantly reduce the lung cancer burden but that costs and infrastructure are major barriers in countries like Bangladesh.
Approach to the Solitary Pulmonary Nodule - New Staging System for NSCLC - Ly...Bassel Ericsoussi, MD
1. The document discusses the evaluation and management of solitary pulmonary nodules (SPNs). It outlines the clinical factors that influence the pre-test probability of malignancy for SPNs and diagnostic tools used in evaluation.
2. Management options for SPNs depend on the assessed risk of cancer, ranging from serial CT imaging for low-risk nodules to surgical resection for high-risk nodules to biopsy or PET scan for indeterminate risk. The key is determining the individual patient's risk through clinical and radiological factors.
3. The document also summarizes changes to the TNM staging system for lung cancer implemented in 2010, including revisions to T, N, and M descriptors and stage groupings
Describes the basic radiology of diffuse interstitial disease ,with differential diagnosis of nodular interstitial pattern and how to approach HRCT findings .
This document discusses various fungal infections of the chest and their imaging appearances. It provides an overview of 9 main fungal organisms (Histoplasmosis, Coccidioidomycosis, Blastomycosis, Paracoccidioidomycosis, Candidiasis, Pneumocystis, Cryptococcosis, Mucormycosis, Aspergillosis) and summarizes their typical radiographic or CT findings. These include calcified nodules, cavitating lesions, consolidations, ground glass opacities, and halo signs which help differentiate the fungal pathogens.
This document provides an overview of cystic lung diseases as seen on HRCT imaging. It begins by defining lung cysts and cavities, noting that cysts typically have walls less than 3mm and cavities have walls over 4mm. Primary diseases that can cause diffuse cysts include Langerhans cell histiocytosis, lymphocytic interstitial pneumonia, and lymphangioleiomyomatosis. Scattered cysts may be seen in hypersensitivity pneumonitis and desquamative interstitial pneumonia. Isolated cysts have been reported in rare conditions like Birt-Hogg-Dube syndrome. Specific imaging features of diseases like Langerhans cell histiocytosis, lymphangio
Presentation1, radiological imaging of ear microcia.Abdellah Nazeer
Microtia refers to underdeveloped or absent external ears. The document discusses the anatomy of normal ears, classifications of microtia, associated abnormalities, and imaging findings. HRCT is useful for evaluating microtia and associated ear anomalies. Common findings include external ear canal atresia, middle ear abnormalities like ossicular anomalies, facial nerve anomalies, and occasionally inner ear or vascular anomalies. Imaging helps surgeons plan reconstruction by identifying important structures like the facial nerve course. Microtia is often associated with ear and other organ developmental anomalies.
Neuroradiology in multiple sclerosis
MRI in diagnosis of MS
MRI in D.D. of MS
MRI in monitoring disease progression and response to DMT
New imaging techniques
1) Adrenal scanning using radiotracers like NCL-6-I can localize adrenal gland abnormalities. Uptake patterns can help distinguish between Cushing's syndrome causes like bilateral hyperplasia vs. adenoma.
2) Adrenomedullary scintigraphy with MIBG is useful for detecting pheochromocytomas, neuroblastomas, and paragangliomas. MIBG uptake helps locate tumors and metastases with high sensitivity and specificity.
3) Both NCL-6-I and MIBG adrenal scans require patient preparation and blocking to reduce background activity, and delayed imaging allows clearer visualization of adrenal and other organ uptake.
Presentation1, radiological imaging of amyloidosis.Abdellah Nazeer
This document discusses radiological imaging findings of amyloidosis. It begins by describing the different subtypes and causes of amyloidosis. It then focuses on thoracic manifestations, describing imaging findings of lymphadenopathy, pulmonary amyloidosis including laryngotracheobronchial, localized nodular, and diffuse types. Finally, it discusses cardiac amyloidosis and associated imaging findings on modalities like CT, MRI, and echocardiography including concentric hypertrophy, thickened atrial walls, delayed enhancement patterns, and reduced systolic function.
This document discusses screening for lung cancer and its potential to reduce the global burden of the disease. It notes that lung cancer is the leading cause of cancer death worldwide. Screening high-risk individuals, defined as those aged 50-80 who are current or former heavy smokers, with annual low-dose CT scans can detect lung cancer earlier and increase survival rates. Several major studies and a meta-analysis provide evidence that lung cancer screening reduces lung cancer mortality. However, screening also carries risks of false positives, overdiagnosis, and radiation exposure. The document concludes that widespread screening has the potential to significantly reduce the lung cancer burden but that costs and infrastructure are major barriers in countries like Bangladesh.
Approach to the Solitary Pulmonary Nodule - New Staging System for NSCLC - Ly...Bassel Ericsoussi, MD
1. The document discusses the evaluation and management of solitary pulmonary nodules (SPNs). It outlines the clinical factors that influence the pre-test probability of malignancy for SPNs and diagnostic tools used in evaluation.
2. Management options for SPNs depend on the assessed risk of cancer, ranging from serial CT imaging for low-risk nodules to surgical resection for high-risk nodules to biopsy or PET scan for indeterminate risk. The key is determining the individual patient's risk through clinical and radiological factors.
3. The document also summarizes changes to the TNM staging system for lung cancer implemented in 2010, including revisions to T, N, and M descriptors and stage groupings
Describes the basic radiology of diffuse interstitial disease ,with differential diagnosis of nodular interstitial pattern and how to approach HRCT findings .
This document discusses various fungal infections of the chest and their imaging appearances. It provides an overview of 9 main fungal organisms (Histoplasmosis, Coccidioidomycosis, Blastomycosis, Paracoccidioidomycosis, Candidiasis, Pneumocystis, Cryptococcosis, Mucormycosis, Aspergillosis) and summarizes their typical radiographic or CT findings. These include calcified nodules, cavitating lesions, consolidations, ground glass opacities, and halo signs which help differentiate the fungal pathogens.
This document provides an overview of cystic lung diseases as seen on HRCT imaging. It begins by defining lung cysts and cavities, noting that cysts typically have walls less than 3mm and cavities have walls over 4mm. Primary diseases that can cause diffuse cysts include Langerhans cell histiocytosis, lymphocytic interstitial pneumonia, and lymphangioleiomyomatosis. Scattered cysts may be seen in hypersensitivity pneumonitis and desquamative interstitial pneumonia. Isolated cysts have been reported in rare conditions like Birt-Hogg-Dube syndrome. Specific imaging features of diseases like Langerhans cell histiocytosis, lymphangio
Presentation1, radiological imaging of ear microcia.Abdellah Nazeer
Microtia refers to underdeveloped or absent external ears. The document discusses the anatomy of normal ears, classifications of microtia, associated abnormalities, and imaging findings. HRCT is useful for evaluating microtia and associated ear anomalies. Common findings include external ear canal atresia, middle ear abnormalities like ossicular anomalies, facial nerve anomalies, and occasionally inner ear or vascular anomalies. Imaging helps surgeons plan reconstruction by identifying important structures like the facial nerve course. Microtia is often associated with ear and other organ developmental anomalies.
This document provides an overview of technology use in education from the past to future possibilities. It discusses how technology has progressed from early uses of word processors to create worksheets to today's interactive whiteboards and online learning platforms. Teachers have increasingly incorporated more technology into their teaching since the late 20th century with formal training opportunities. The future of education involves more ubiquitous and distributed learning through online platforms that provide lifelong learning opportunities for students and teachers.
17. Osteoid osteom
• 10-30 y, E/K:2/1
• Femur proksimali, tibia
• Semptomları
– Geceleri artan, haftalar ve aylar süren, aspirinle
geçen ağrı
– Omurgada ise ağrılı skolyoz
• Tipleri: Kortikal (%80), subperiostal, kanselöz
18.
19.
20.
21.
22.
23. Osteoblastom
• Osteoid osteoma
benzer
• Anevrizmal kemik
kistine benzer
• Mlign tümöre benzer
24. Osteosarkom
• 10-30y ve 60-80y, en sık görülen primer
malign soliter kemik tümörü
• %90’ı apendiküler isk. (bunların yarısı da
diz çevresi)
• Tipleri
– İntraosseöz (litik,sklerotik,miks)
– jukstakortikal (parosteal, periosteal, yüzey)
47. Eozinofilik granülom
• %80 olgu < 10y
• Kafa kemikleri ve proksimal femur
• Ağrı ve lokal hassasiyet
• Uzun kemiklerdeki radyolojik görünüm çok
değişik olabilir
51. Ewing sarkomu
• 5-25 y
• Uzun kemikler, ilyak kemik
• Kliniği osteomiyelite benzer
• m
52.
53.
54.
55.
56. • Çocukta, radyografik olarak aynı
boyutlardaki permeatif bir lezyonda,
semptomların süresi:
– 4-6 ay ise Ewing sarkomu,
– 4-6 hafta ise Osteomiyelit,
– 1-2 hafta ise Eozinofilik granülom düşünülür.
Greenspan A. Ortopedic Imaging. 4.ed. 2004
68. Sonuç
• Kemik tümörleri ve tümöre benzer lezyonların
tanısında temel yöntem radyografidir
• Kesit görüntüleme yöntemleri
– Radyografi ile gösterilemeyen durumlarda osteoid
osteomaların nidusunu göstermek
– Anevrizmal kemik kisti gibi bazı lezyonları
doğrulamak,
– Lezyonun yumuşak doku komponentini belirlemek ve
karakterize etmek,
– Malign tümörlerin çevre yayılımlarını saptamak