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
Killian&;s incision is used for 
Select and explain. 
A. Septoplasty, B. Myringotomy, C. Proof puncture, D. Modified radical mastoidectomy
A: Septoplasty
Answer: A: Septoplasty 
Explanation: Killian&;s incision is used for septoplasty Killians incision in case of deted nasal septum, make a slightly curvilinear incision, 2-3mm above the caudal end of septal cailage on the concave side . Re: Textbook of Ear, Nose and Throat, Dhingra, 6th Edition; Pg no: 416