11 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Chronic hypersensitivity ... Fibrosis and parenchymal ... The HRCT shows a ... #Clinical #Radiology ... #CXR #CTChest #
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Pneumonia, COP, Chronic ... #CT #Patterns # ... #pulmonary #radiology
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
HP (right) Differential ... diagnosis of Hypersensitivity ... show very similar HRCT ... In chronic HP fibrotic ... #CTChest #UIP #
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... distribution: Hypersensitivity ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #GroundGlass #Differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Causes: • Cystic fibrosis ... tracheobronchomegaly) • Hypersensitivity ... Diagnosis: • HRCT ... CT) • Broncho-arterial ... Bronchiectasis #pulmonary #differential
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
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
Chronic hypersensitivity ... Signs of fibrosis ... included in the differential ... #Clinical #Radiology ... #CTChest #Chronic
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Radiation C - Cystic Fibrosis ... H - Hypersensitivity ... aspergillosis - Chronic ... lung #diseases #differential ... #STARCHASERS #radiology
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
pneumonitis or fibrosis ... in chronic hypersensitivity ... disease in the differential ... #Clinical #Radiology ... #CTChest #DrugInduced
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
these non-specific CT ... there is a broad differential ... would first think hypersensitivity ... #Clinical #Radiology ... #CTChest #RBILD