A 58-year-old male with known bilateral hilar lymphadenopathy on chest X-ray is suspected to have sarcoidosis. Which of the following radiological staging systems is specifically used for pulmonary sarcoidosis based on plain chest radiograph findings?
- A TNM staging
- B Scadding staging ✓
- C Wells criteria
- D Bode index
Correct answer: B. Scadding staging
Explanation
The Scadding classification (Stage 0 through IV) is the standard chest radiograph-based staging system for pulmonary sarcoidosis. Stage 0 is normal; Stage I shows bilateral hilar lymphadenopathy alone; Stage II shows hilar lymphadenopathy with pulmonary infiltrates; Stage III shows infiltrates without hilar lymphadenopathy; Stage IV shows pulmonary fibrosis. TNM is for lung cancer. Wells criteria assess pre-test probability for pulmonary embolism. Bode index is a prognostic tool for COPD.
Reference: Harrison's Principles of Internal Medicine, 21st ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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