system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 35 year old male presented with nasal discharge, facial pain and fever which subsided with a course of antibiotics and antihistaminics, which recurred again after 2 months. O/E mucopurulent discharge from middle meatus, and inflammed sinus openings, investigationof choice
assistant
The correct answer is  Ans. is 'b' i.e. NCCT PNS * Findings are suggestive of maxillary sinusitis * NCCT is the investigation of choice