6 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... perilymphatic distribution ... Clinical #Radiology #HRCT ... CTChest #Nodular #Pattern ... #Comparison #Table
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... perilymphatic distribution ... Clinical #Radiology #HRCT ... CTChest #Nodular #Pattern ... #Comparison #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
The distribution ... In most cases small ... Random distribution ... #Distribution # ... Perilymphatic #Comparison
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Unknown • 6-7 cases ... CXR: Peripheral distribution ... consolidation and GG pattern ... , cavities • HRCT
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... to look at the pattern ... of distribution ... lobar pneumonia caused ... idiopathic it is called cryptogenic
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... incidental finding in HRCT ... and perihilar distribution ... Clinical #Radiology #HRCT ... #Comparison #Table