7 results
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
and areas of low ... attenuation. ... Fibrosis and parenchymal ... #Clinical #Radiology ... #CXR #CTChest #
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation ... Chronic eosinophilic ... end-stage with massive fibrosis ... consolidation #Clinical #Radiology ... #HRCT #CTChest
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Acute Eos PNA • Chronic ... Pneumonia, COP, Chronic ... #CT #Patterns #Differential ... Diagnosis #pulmonary #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
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
There are patchy areas ... oligemic lung due to chronic ... disease #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Causes: • Cystic fibrosis ... evidence of cystic fibrosis ... Nasal polyps and signs ... hypertension • Mosaic attenuation ... Bronchiectasis #pulmonary #differential
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
radiographic findings are areas ... in chronic hypersensitivity ... disease in the differential ... #Clinical #Radiology ... #CTChest #DrugInduced