食道のbronchogenic cystの1例

A Case of Bronchogenic Cyst in Esophagus

I．はじめに

　bronchogenic cystは胎生期の気管，気管支の異常発達により発生し，一般に胸腔内，とくに肺，縦隔に多く発生する^1,2）とされている。食道での発生はきわめて稀で，Arbonaら^2）の報告では1943年から1984年の42年間に7例を認めるのみである。われわれの検索しえた範囲では本邦では過去20年間報告は認められなかった。今回われわれはきわめて稀な食道のbronchogenic cystを経験したので報告する。

A rare case of brochogenic cyst in the esophagus is reported. The patient was a 54-year-old male who had chiefly complained of uncomfortable sensation of the pharynx. X-ray examinations with contrast medium revealed a tumor in the cervical esophagus. The tumor was removed via lateral cervical approach. The tumor was oval shape with smooth surface and elastic soft. It was his-tologically demonstrated to be bronchogenic cyst. The bronchogenic cyst is rare in the esophagus in comparison with the lung. No report in Japan-ese literature was found out from 1966 to 1986. The histological characters of branchiogenic cyst were discussed.