耳下腺腫瘍手術症例の臨床統計

A clinical study of 95 cases of parotid tumors

Ⅰ．はじめに

　耳下腺腫瘍は唾液腺腫瘍の約8割を占め^1），耳鼻咽喉科の日常診療においてもしばしば遭遇する。しかし耳下腺腫瘍は多彩な組織型を呈し，解剖学的にも顔面神経との位置関係により，診断・治療に際してさまざまな問題が生じる。今回，われわれは当科で経験した過去の耳下腺腫瘍手術症例を対象に，診断や治療における問題点を検証し，若干の文献的考察を加え報告する。

　The clinical study of 95 patients（40 men, 55 women）with parotid tumors surgically resected was underwent retrospectively. Benign tumors were observed in 86 patients（90.5％）, and pleomorphic adenoma in 42, Warthin's tumors in 24. Malignant tumors were observed in 9 patients（9.5％）. The results of preoperative fine-needle aspiration cytology and 67-Galium scan had a low sensitivity and a high specificity for malignancy. There were no interaction between the incidence of facial palsy and the size of tumors. We identified smoking as a significant risk factor for Warthin's tumor.