13 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
are: Mosaic pattern ... secondary nodules ... and secondry nodules ... Radiology #CXR #CTChest ... #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Non specific interstitial ... pneumonitis (NSIP ... result of massive fibrosis ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
pattern with areas ... Signs of fibrosis ... pattern should ... Clinical #Radiology #CTChest ... #RadiologyAssistant
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
centrilobular nodules ... 80% of cases) or mosaic ... pattern of a combination ... Clinical #Radiology #CTChest ... Centrilobular #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
HRCT as seen in fibrosis ... in ground glass pattern ... Hypersensitivity pneumonitis ... Radiology #Pulmonary #CTChest ... #Differential #RadiologyAssistant
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
with ground glass pattern ... in a mosaic distribution ... centrilobular nodules ... Clinical #Radiology #CTChest ... HypersenstitivityPneumonitis #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Lymphangitic Carcinoma, Interstitial ... Low Attenuation Nodular ... Hypersensitivity Pneumonitis ... #CT #Patterns #
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
and non-specific interstitial ... pneumonitis or ... or NSIP pattern ... Clinical #Radiology #CTChest ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
pneumonias (IIPs ... combinations of fibrosis ... have specific patterns ... Radiology #Pulmonary #CTChest ... ILD #Findings #RadiologyAssistant
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
lobes and some mosaic ... pattern as the ... abnormalities and signs of fibrosis ... Clinical #Radiology #CTChest ... DesquamativeInterstitialPneumonia #ILD #RadiologyAssistant