Anatomy General anatomy 09a14e77 Pachydermia laryngitis - M/C site of involvement A Vestibular fold B Arytenoid cailage C Anterior 1/3 commissure D Posterior 1/3 and anterior 1/3 commissure High-Yield Explanation Pachyderma laryngitis affects the medial surface of arytenoid cailage, in paicular the vocal processes. Ref:- Scott&;s Brown 7th edition; pg num:- 2196