[Case of sarcomatoid carcinoma of the urinary bladder].

A 57-year-old man was referred to our hospital for bladder tumor. The computed tomographic scan demonstrated an 8 cm solid mass in the posterior wall of the bladder. Cystoscopy revealed a non-papillary large bulky tumor and a necrotic tumor surface. The tumor was transurethrally resected and its histology showed sarcomatoid carcinoma composed of a urothelial cell carcinoma. Total cystectomy was performed and an ileal neobladder was constructed. He now shows no evidence of disease 43 months after the operation.