The Lund-Mackay scoring system is used to evaluate which condition on CT scan?
- A Extent of nasal polyposis on endoscopy
- B Olfactory function grading
- C Chronic rhinosinusitis severity on CT of paranasal sinuses ✓
- D Degree of nasal septal deviation
Correct answer: C. Chronic rhinosinusitis severity on CT of paranasal sinuses
Explanation
The Lund-Mackay score grades CRS severity on CT by scoring each sinus group (maxillary, anterior/posterior ethmoid, sphenoid, frontal) as 0 (no opacification), 1 (partial), or 2 (complete) and the osteomeatal complex as 0 (not occluded) or 2 (occluded) bilaterally; maximum score is 24. It standardises reporting and surgical planning. Polyposis is graded endoscopically by Lund-Kennedy score. Olfactory function uses Sniffin' Sticks or UPSIT.
Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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