This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infections and Inflammatory Conditions, Subject name: ENT
Tubercular laryngitis affects primarily: 
Select and explain. 
A. Anterior commissure, B. Posterior commissure of larynx, C. Anywhere within the larynx, D. Superior surface of larynx
B: Posterior commissure of larynx
Answer: B: Posterior commissure of larynx 
Explanation: (b) Posterior commissure of larynx(Ref. Scott Brown, 8th ed., Vol 3; 1018)Mostly the granulomatous conditions of the larynx start in the anterior part of the larynx except for tuberculosis which starts and mainly involves the posterior part.