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
Sinus least involved in children is:
assistant
The correct answer is  The reason for sphenoid sinus to be least affected as it opens high up in the sphenoid recess which is not affected by most of the conditions of nose. Ref Dhingra 6/e,p 193