10 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... low attenuation (table ... Diagnosis #Radiology #Pulmonary ... #Pattern #Differential
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... and cardiogenic pulmonary ... #HRCT #ChestCT ... #Differential #Table ... #Distribution #Central
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
nodules along the central ... bronchovascular interstitium ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... MultipleNodules #Nodules #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Thickening of the interstitium ... resolution of the HRCT ... in ground glass pattern ... Diagnosis #Radiology #Pulmonary ... #GroundGlass #Differential
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... have specific patterns ... morphologic findings on HRCT ... realise, that these patterns ... Diagnosis #Radiology #Pulmonary
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... has a limited differential ... diagnosis (Table ... pulmonary edema ... #HRCT #CTChest
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... incidental finding in HRCT ... peribronchovascular interstitium ... #Comparison #Table
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... thickening of the central ... bronchovascular interstitium ... Carcinomatosis #Mimic #Differential ... #Comparison #Table
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... gastrointestinal, and/or central ... inflammatory lesions-interstitial ... - (C-ANCA) pattern ... - (P-ANCA) pattern
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Angiitis of the Central ... white and gray matter ... gastrointestinal, and/or central ... inflammatory lesions - interstitial