11 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Diagnosis Framework Reticular ... Interstitial Edema, Alveolar ... Pneumonia, COP, Chronic ... Crazy Paving: Alveolar ... #radiology
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Fibrosis and parenchymal ... and intralobular reticular ... existing irreversible fibrosis ... #Clinical #Radiology ... #Fibrosis #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
end-stage with massive fibrosis ... Broncho-alveolar ... consolidation #Clinical ... #Radiology #HRCT ... Comparison #Table #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... fibrosis. ... attributed to chronic ... #Clinical #Radiology ... #Honeycombing #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema. - Alveolar ... In chronic HP fibrotic ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Mimic #ILD #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
like acute or chronic ... illness, clinical ... filling of the alveoli ... #Radiology #CXR ... Consolidation #Causes #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... Alveolar proteinosis ... #Clinical #Radiology ... Comparison #Table #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
interstitium by fluid, fibrous ... in a pattern of reticular ... or lymphoma and alveolar ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
On the left we see consolidation and ground-glass opacity in a patient with persistent chest abnormalities
This suggested a chronic ... we can rule out fibrosis ... revealed broncho-alveolar ... cell carcinoma #Clinical ... #Radiology #CTChest
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
Chronic hypersensitivity ... Signs of fibrosis ... findigs alone, alveolar ... #Clinical #Radiology ... #RadiologyAssistant