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 comparison diagnosis pattern pulmonary cxr lowattenuation cavity cyst nodular cavitarylesion diagram histiocytosis honeycombing ild interpretation interstitial lam langerhanscellhistiocytosis
Low Attenuation pattern 1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... Centrilobular emphysema ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... multiple thick walled cysts ... (LAM): regular cysts ... #Comparison #Table ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis. Nodular LCH: - Sarcoidosis: perilymphatic distribution. - Metastases: random distribution. Cystic LCH: - LAM: round
: round cysts, evenly ... Centrilobular emphysema ... Diagnosis #Radiology #CTChest ... #Cystic #Cysts ... #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions. These include: - Emphysema -
- Lung cysts (LAM ... on the basis of HRCT ... LowAttenuation #Differential ... TractionBronchiectasis #Cysts ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis. We
them from cysts ... Cysts occur without ... Cysts usually contain ... #Cavity #Cyst # ... #RadiologyAssistant
Nodular pattern(2) 1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy. 2. TB: Tree-in-bud appearance in a patient
before the typical cysts ... Clinical #Radiology #HRCT ... #CTChest #Nodular ... Pattern #Comparison #Table ... #RadiologyAssistant
Differential diagnosis on HRCT Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... The cystic pattern ... When the cysts have ... #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
the lung, like cyst ... a thick wall Cyst ... #CXR #Lucency #Differential ... #Table #CavitaryLesion ... #Cavity #Cyst #
Differential diagnosis of Lymphangiomyomatosis: Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... 90% are smokers, cysts ... Centrilobular emphysema ... Clinical #Radiology #CTChest ... #RadiologyAssistant
Basic Interpretation A structured approach to interpretation of HRCT involves the following questions: What is the dominant HR-pattern: reticular nodular high
low attenuation (emphysema ... , cystic) Where ... #CTChest #Interpretation ... #Algorithm #ILD ... #RadiologyAssistant
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