術前診断された偶発性膀胱褐色細胞腫の1例

Abstract

A 62-year-old man who wasdiagnos ed ashaving a bladder tumor by computerized tomography in another hospital. On August 4, 2006 he visited our hospital. Cystoscopic examination revealed a submucosal tumor posterior to the right orifice. Computer tomography and magnetic resonance imaging showed the same findings. Therefore, we considered the possibility of asymptomatic pheochromocytoma of the urinary bladder. 131I-metaiodoberzyl guanidine scanography showed an abnormal accumulation in the bladder. Endocrinologic examination disclosed an increased level of serum and urinary noradrenalin. Pheochromocytoma of the bladder was diagnosed, and on October 25, 2006 a partial cystectomy and right ureteroneostomy were performed. Histologically, the tumor was pheochromocytoma of the urinary bladder. He hasbeen receiving follow-up clinical observation for 30 monthsfollowing the operation, and there hasnot been any evidence of recurrence.