49 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Hypersensitivity pneumonitis ... • Radiation pneumonitis ... Idiopathic Interstitial Pneumonias ... Idiopathic pulmonary fibrosis ... #diagnosis #differential
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Fibrosis and parenchymal ... existing irreversible fibrosis ... #Clinical #Radiology ... #CXR #CTChest # ... HypersensitivityPneumonitis #Chronic #Fibrosis
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
bronchiectasis due to fibrosis ... lymphadenopathy #Clinical #Radiology ... #CTChest #UIP # ... #Interstitial #Pneumonitis ... #ILD #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis ... : ill defined centrilobular ... Hypersensitivity pneumonitis ... #Clinical #Radiology ... #HRCT #CTChest
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
specific interstitial pneumonitis ... result of massive fibrosis ... #Clinical #Radiology ... #HRCT #CTChest
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... Hypersensitivity pneumonitis ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... NodularPattern #Differential
Typical UIP with honeycombing and traction bronchiectasis in a patient with idiopathic pulmonary fibrosis (IPF) #Clinical
idiopathic pulmonary fibrosis ... IPF) #Clinical #Radiology ... #CTChest #UIP # ... IPF #ILD #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... edema #Diagnosis #Radiology ... HRCT #ChestCT #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 ... #CT #Patterns #Differential ... Diagnosis #pulmonary #radiology
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... Hypersensitivity Pneumonitis ... Subacute stage: - RB-ILD ... Clinical #Diagnosis #Radiology ... #CTChest #UIP #