11 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... there are four patterns ... low attenuation (table ... The ground-glass ... The cystic pattern
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... peripheral areas of ground ... both areas of ground ... HighAttenuation #Pattern ... #Comparison #Table
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... pneumonitis (NSIP): ground ... HighAttenuation #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... centrilobular nodules of ground-glass ... CTChest #Nodular #Pattern ... NodularPattern #Differential ... #Comparison #Table
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... The table summarizes ... to look at the pattern ... more than one pattern ... #Table #RadiologyAssistant
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
: Subacute • Pattern ... : Subacute • Pattern ... or subacute • Pattern ... Insidious/slow • Pattern ... #rheumatology #table
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders - Differential ... lymphadenopathy more diffuse ... involvement, irregular pattern ... Lymphoproliferative #Disorders #Classification ... Diagnosis #NonHodgkin #differential
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Kerley B lines), ground-glass ... Alveolar proteinosis: ground ... CTChest #Reticular #Pattern ... #Comparison #Table
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
capillaritis leading to diffuse ... hemorrhage (DAH) • Diffuse ... ground glass or ... microscopic or gross ... • IF staining patterns
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
a patient with ground ... glass pattern in ... The differential ... confluent, HRCT shows diffuse ... ground glass.