19 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... four patterns: reticular ... On a Chest X-Ray ... #Pattern #Differential ... #RadiologyAssistant
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
atenuation and areas ... Fibrosis and parenchymal ... and intralobular reticular ... Radiology #CXR #CTChest ... #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
by fluid, fibrous ... in a pattern of reticular ... has a limited differential ... #Differential # ... RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Non specific interstitial ... result of massive fibrosis ... Radiology #HRCT #CTChest ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... end-stage with massive fibrosis ... Radiology #HRCT #CTChest ... HighAttenuation #Pattern #Comparison ... #Table #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 ... disease (i.e. fibrosis ... Radiology #Pulmonary #CTChest ... #GroundGlass #Differential ... #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Diagnosis Framework Reticular ... Lymphangitic Carcinoma, Interstitial ... #CT #Patterns #Differential
On the left a chest film of a patient with UIP due to IPF.
The findings on
volume loss and fibrotic ... Radiology #CXR #CTChest ... UsualInterstitialPneumonitis #Usual #Interstitial ... #Pneumonitis #Reticular ... #ILD #RadiologyAssistant
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
skin (esp. over areas ... Ulcers, Livedo reticularis ... Pericarditis) -> Chest ... tends to cause interstitial ... disease/pulmonary fibrosis
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary fibrosis ... On a chest X-ray ... manifests as a reticular ... #Interstitial # ... #Honeycombing #RadiologyAssistant