喉頭のｌｙｍｐｈｏｉｄ ｈｙｐｅｒｐｌａｓｉａ

Abstract

A rare case of lymphoid hyperplasia (pseudolymphoma) of the larynx is reported. The patient was a 51-year old female. She complained of abnormal sensation of the throat since January 1986. She was referred to our clinic on October 1. On admission, swelling of the left false vocal fold was observed. The surface of the false vocal fold was smooth and covered with normal epithelium. No cervical lymphnode swelling was palpated. On CT scan, a low density tumor was detected in the submucosa of the left false vocal fold. Operation was performed on October 5. After suprahyoid pharyngotomy, the tumor was enucleated. It was elastic soft, 30mm×16mm×10mm in size, and yellowish white in color. Histological examination revealed lymphoid hyperplasia (pseudolymphoma) of the larynx. The patient has lived without any evidence of lymphoreticular disease for two years and six months. The English and Japanese literature on lymphoid hyperplasia of the larynx is reviewed.