Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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radiology clinical ctchest pattern diagnosis nodular differential pulmonary cystic lowattenuation chestct chronic cxr cysts diagram fibrosis hypersensitivitypneumonitis ild lower lung
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... Centrilobular distribution ... #NodularPattern ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant
Nodular pattern 1. Hypersensitivity pneumonitis: ill defined centrilobular nodules. 2. Miliary TB: random nodules 3. Sarcoidosis: nodules with perilymphatic
pneumonitis: ill defined centrilobular ... perilymphatic distribution ... Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Algorithm for nodular pattern The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following: - Look
perilymphatic, random and centrilobular ... is likely centrilobular ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern ... #RadiologyAssistant
On the left some diseases with a nodular pattern. 1. Hypersensitivity pneumonitis: ill defined centrilobular nodules. 2. Miliary
perilymphatic distribution ... perilymphatic distribution ... Nodular #Pattern #NodularPattern ... #Differential #Comparison ... #Table #RadiologyAssistant
Upper lung zone preference is seen in: - Inhaled particles: pneumoconiosis (silica or coal) - Smoking related diseases
related diseases (centrilobular ... Radiology #Pulmonary #HRCT ... #Differential #Table ... #Distribution # ... Upper #Lower #RadiologyAssistant
Low Attenuation pattern (2) 1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... Notice the centrilobular ... Clinical #Radiology #HRCT ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis. Nodular LCH: - Sarcoidosis: perilymphatic distribution. - Metastases: random distribution. Cystic LCH: - LAM: round
perilymphatic distribution ... cysts, evenly distribution ... ring sign'. - Centrilobular ... #Differential #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern 1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... Clinical #Radiology #HRCT ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Nodular pattern(2) 1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy. 2. TB: Tree-in-bud appearance in a patient
perilymphatic distribution ... Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Metastases Metastases are the most common cause of multiple pulmonary masses. Usually they vary in size and are
the most common cause ... HRCT will demonstrate ... perilymphatic or centrilobular ... distribution. ... Lung #Metastases #RadiologyAssistant
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