A Case of Schwannoma in the Interarytenoid Area Presenting as Papillomatous Mass

Abstract

Schwannoma is a type of benign neurogenic tumor which may be derived from the nerve sheath. It is common in the head and neck region, but it occurs relatively rarely in the larynx. The laryngeal schwannoma can occur in the false vocal cord, aryepiglottic fold and epiglottis etc. The typical feature of it is a round submucosal well-encapsulated mass, and papillomatous appearance of its surface is extremely rare. A 76-year-old male came to our clinic with voice change and globus sense. The rigid laryngoscopy showed round papillomatous mass in the interarytenoid area. We performed laryngeal microsurgery, and he was pathologically diagnosed as schwannoma. We report an interesting and didactic case that has an atypical feature of laryngeal schwannoma with relevant literature review.