口腔内小唾液腺腫瘍—特に腺癌症例について

INTRAORAL MINOR SALIVARY GLAND TUMORS, ESPECIALLY ON ADENOCARCINOMA

　I．はじめに

　大唾液腺腫瘍に比べて口腔内小唾液腺腫瘍に関するまとまつた報告は耳鼻咽喉科領域では少ない。Willisによると小唾液腺腫瘍は耳下腺腫瘍の十分の一の頻度でしかみられず比較的少ないことにもよる^4）。しかし口腔内の腫瘍として耳鼻科医を訪れることも病院によつては十分起こり得る。私どもは最近2年間に7例の口腔内小唾液腺腫瘍を経験したが，特に腺癌症例に経過の長いものが多かつたので他の悪性腫瘍と臨床的経過を多少異にするものと考え組織学的所見もあわせて若干の検討を行なつた。

　The clinical course and microscopic examination on 7 cases of minor salivary gland tumor are reported. Two cases were found with areas of squamous metaplasia which caused local metastasis in both cases but they are still living after 8 years of the affection. These cases were considered as benign.

　In the other 5 cases of adenocarcinoma, one died within a year after the establishment of the diagnosis. In the four other cases the patients are still alive at 1 to 13 years. The three of these are still alive at 8 years of the affection with metastatic recurrences of lungs and other areas.

　The authors emphasize the necessity of long term follow-up in cases of adenocarcinoma.