Imaging Case of the Week 37

Imaging Case of the Week 37


This is the chest x-ray from a 40 year old man who has presented to the emergency department with a cough and mild dyspnoea. Anything obvious on the x-ray?

chest x-ray

Click to enlarge

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The chest x-ray shows clear lung fields.There is no pleural effusion and no pneumothorax. The left diaphragm is higher compared to the right (long standing finding).

The notable feature on this xray is lobulated bilateral hilar enlargement. There is symmetrical (more or less) bilateral hilar adenopathy. This patient was later diagnosed with sarcoidosis.

bilateral hilar adenopathy

click to enlarge

Based on chest x-ray findings, pulmonary sarcoidosis is classified into 4 stages:

  1. Bilateral hilar adenopathy but otherwise clear lungs.
  2. Bilateral hilar adenopathy and diffuse reticulonodular disease pattern in the lungs.
  3. No lymphadenopathy but diffuse coarse reticulonodular pattern.
  4. Scarring/fibrosis in the lung parenchyma.

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This entry was posted in Advanced EM Cases, Imaging Case of the Week by Prathibha. Bookmark the permalink.

About Prathibha

FACEM, Advanced EKG-Board Certified (American Board of Cardiovascular Medicine), Specialty Certificate in Acute Medicine (MRCP UK) with an interest in emergency radiology.




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