12 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Chronic hypersensitivity ... #Clinical #Radiology ... #CXR #CTChest # ... #Pneumonitis #HypersensitivityPneumonitis ... #Chronic #Fibrosis
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity ... Hypersensitivity ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity ... #Clinical #Diagnosis ... #CTChest #Nodular ... NodularPattern #Differential ... #Comparison #Table
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
HP (right) Differential ... In chronic HP fibrotic ... #Radiology #CTChest ... #UIP #Comparison ... #Chronic #HypersensitivityPneumonitis
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Low Attenuation Nodular ... Acute Eos PNA • Chronic ... Pneumonia, COP, Chronic ... #CT #Patterns #Differential
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
end-stage with massive fibrosis ... consolidation #Clinical ... #CTChest #HighAttenuation ... #Pattern #Comparison ... #Table #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
Chronic hypersensitivity ... included in the differential ... #Clinical #Radiology ... #CTChest #Chronic ... #Pneumonitis #HypersensitivityPneumonitis
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
The differential ... centrilobular nodules ... #Clinical #Radiology ... #CTChest #GGO # ... MosaicAttenuation #Mosaic #HypersenstitivityPneumonitis
Longstanding Sarcoidosis
Here a typical chest film in a patient with long standing Sarcoidosis (stage IV).
There is
Here a typical chest ... The differential ... diagnosis includes chronic ... hypersensitivity ... #Clinical #Radiology