11 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Mosaic pattern with areas ... atenuation and areas ... The HRCT shows a ... #Clinical #Radiology ... #CXR #CTChest #
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... presenting as areas ... with peripheral areas ... #HRCT #CTChest ... HighAttenuation #Pattern #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
The HRCT at presentation ... shows lobular areas ... A control HRCT ten ... #Clinical #Radiology ... #CTChest #Hypersensitivity
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
with similarl HRCT ... the right has hypersensitivity ... the well defined areas ... #CTChest #RBILD ... #Comparison #HypersensitivityPneumonitis
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
Differential diagnosis of Hypersensitivity ... show very similar HRCT ... throughout the whole lung ... #CTChest #UIP # ... Comparison #Chronic
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
mosaic pattern with areas ... attenuation and areas ... mid and lower lung ... #Clinical #Radiology ... #CTChest #Chronic
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
rare idiopathic lung ... There are areas ... and extensive areas ... #Clinical #Radiology ... #CTChest #AIP #
On the left a typical case of panlobular emphysema.
There is uniform destruction of the underlying architecture
to widespread areas ... in the affected lung ... difficult to detect on HRCT ... #Clinical #Radiology ... #CTChest #Panlobular