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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comparison diagnosis pattern pulmonary langerhanscellhistiocytosis interstitial cxr histiocytosis uip emphysema nodular lowattenuation pneumonitis reticular usual usualinterstitialpneumonitis cysts highattenuation honeycombing hypersensitivitypneumonitis
Differential diagnosis of Langerhans cell histiocytosis. Nodular LCH: - Sarcoidosis: perilymphatic distribution. - Metastases: random distribution. Cystic LCH: - LAM: round
Cystic LCH: - LAM ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Nodular pattern 1. Hypersensitivity pneumonitis: ill defined centrilobular nodules. 2. Miliary TB: random nodules 3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Upper lung zone preference is seen in: - Inhaled particles: pneumoconiosis (silica or coal) - Smoking related diseases
bronchiolitis (RB-ILD ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
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 ... Pattern #Comparison #Table ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions. These include: - Emphysema -
on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Cystic versus Reticular It can be difficult to determine whether we are dealing with a reticular pattern
LCH is called a ... of such cases a HRCT ... #Clinical #Radiology ... #CXR #CTChest # ... #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 ... #Diagnosis #Radiology ... #RadiologyAssistant
HRCT findings in UIP Honeycombing consisting of multilayered thick-walled cysts. Architectural distortion with traction bronchiectasis due to fibrosis. Predominance
HRCT findings in ... multilayered thick-walled cysts ... lymphadenopathy #Clinical ... #Radiology #CTChest ... #RadiologyAssistant
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