5 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone preference ... related diseases (centrilobular ... Sarcoidosis Lower zone preference ... Radiology #Pulmonary #HRCT ... #Differential #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... pneumonitis: ill defined centrilobular ... Clinical #Radiology #HRCT ... CTChest #Nodular #Pattern ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Centrilobular emphysema ... Notice the centrilobular ... Clinical #Radiology #HRCT ... #Comparison #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... in the nodular pattern ... Random refers to no preference ... Radiology #Pulmonary #HRCT ... Perilymphatic #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Centrilobular emphysema ... Clinical #Radiology #HRCT ... LowAttenuation #Cystic #Pattern ... #Comparison #Table