膀胱平滑筋腫の1例

LEIOMYOMA OF THE BLADDER: A CASE REPORT

　39歳，女性．頻尿，排尿時痛を主訴に来院．膀胱鏡検査にて膀胱頂部右側に正常粘膜に覆われた鳩卵大の腫瘤を認めた．超音波検査，CT,MRI，その他の検査から膀胱粘膜下腫瘍もしくは尿膜管腫瘍が考えられ，手術を行った．病理検査の結果，膀胱平滑筋腫と診断した．術前診断，特にMRIによる術前診断について検討し報告した．

A-39-year-old woman was admitted because of pollakisuria and pain on urination. Cystoscopic examina-tion revealed a pigeon's egg sized mass covered with intact vesical mucosa and protruding from the right side of the dome. Ultrasonography, computed tomography, magnetic resonance imaging and pelvic angiography suggested a urachal tumor or submucosal tumor of the bladder. Partial cystectomy was performed and histopathological diagnosis was leiomyoma of the bladder without malignancy.