This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnostic and operative ENT, Subject name: ENT
In antral lavage, approach is through 
Select and explain. 
A. Medial wall, B. Roof, C. Posterior wall, D. Canine fossa
A: Medial wall
Answer: A: Medial wall 
Explanation: This procedure involves puncturing the medial wall of maxillary sinus in the region of inferior meatus and irrigating the sinus. Antral Puncture- Ref- Dhingra, 6th edition, page 408.