喉頭腺様囊胞癌の1例

A case of Adenoid cystic carcinoma of the larynx

Ⅰ　はじめに

　喉頭癌の多くは扁平上皮癌であるが，喉頭の腺系悪性腫瘍はきわめて稀でありその発生頻度は喉頭癌の1％未満^1）といわれている。今回われわれは，本人の強い希望により無治療で経過をみている腺様囊胞癌の1症例を経験したので報告する。

　Laryngeal adenoid cystic carcinoma is rare disease. A 90-year-old man with laryngeal adenoid cystic carcinoma presented with hoarsness for a month. Endoscopic examination of the larynx revealed a submucosal mass lesion in the subglottic area. The pathological diagnosis was adenoid cystic carcinoma by fine needle aspiration. We recommended total laryngectomy but he and his family refused operation,and we followed him without treatment. Tracheostomy was performed 1 year 4 months later,because he developed dyspnea by growing tumor. He could not eat and speak ordinarily because of the growing tumor after 3 years and 3 months from first diagnosis.