SARCOMATOID CARCINOMA OF THE URINARY BLADDER

Abstract

Introduction: Most of bladder tumors are urothelial cell carcinomas. Sarcomatoid carcinoma is a rare tumor of the urinary bladder and accounts for approximately 0.3% of all bladder malignancies. In these tumors, histogenesis and biological behavior remain controversial. Herein, we report five cases of sarcomatoid carcinoma of the urinary bladder.