異物による膀胱周囲肉芽腫の1例

A CASE OF PARAVESICAL INFLAMMATORY GRANULOMA CAUSED BY THE FOREIGN BODY

　58歳，女性。主訴は下腹部痛。膀胱鏡，超音波検査，CTにて尿膜管腫瘍を疑われ，尿膜管摘出術および膀胱部分切除術を施行した。組織学的所見では，膀胱頂部壁内の膿瘍，および異物巨細胞を含む肉芽腫であり，その中には手術糸とみなされる異物が認められた。患者は41歳のとき，子宮筋腫のため単純子宮全摘除術を経験しており，この時の手術糸による膀胱周囲肉芽腫と診断された。

A fifty-two-year-old female complained of lower abdominal pain, was clinically diagnosed as having urachus tumor by cystoscopy. ultrasonography and CTscan. Partial cystectomy and removal of urachus was performed. Histologically, the tumor contained small and inflamatory granuloma with silk suture material. The diagnos was foreign body granuloma. When she was 41 year old. hysterectomy was performed due to myoma uteri. We suspected this granuloma was caused by the silk suture material on hysterectomy.