12 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
are: Mosaic pattern ... Fibrosis and parenchymal ... The HRCT shows a ... mosaic pattern ... #Clinical #Radiology
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... specific interstitial pneumonitis ... result of massive fibrosis ... #HRCT #CTChest ... HighAttenuation #Pattern
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... as seen in fibrosis ... in ground glass pattern ... Hypersensitivity pneumonitis ... #GroundGlass #Differential
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT Patterns ... - Differential ... Hypersensitivity Pneumonitis ... HighRes #Chest #CT #Patterns ... #Differential #
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... are visible, the pattern ... #Pulmonary #HRCT ... NodularPattern #Nodular #Pattern ... MultipleNodules #Nodules #Differential
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
idiopathic interstitial pneumonias ... combinations of fibrosis ... have specific patterns ... morphologic findings on HRCT ... realise, that these patterns
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
with ground glass pattern ... The differential ... hypersensitivity pneumonitis ... are confluent, HRCT ... #Clinical #Radiology
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
hypersensitivity pneumonitis ... patients with a UIP pattern ... or NSIP pattern ... disease in the differential ... #Clinical #Radiology
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan: the mosaic pattern ... Signs of fibrosis ... with a mozaic pattern ... included in the differential ... #Clinical #Radiology
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
named Hamman Rich Pneumonitis ... with subsequent fibrosis ... The histologic pattern ... aswell as the HRCT ... #Clinical #Radiology