Carcinosarcoma is a rare malignant tumor of the urinary bladder.This tumor has a char-acteristic admixture of carcinomatous and sarcomatous components.

• 摘要癌肉瘤是一个罕见的膀胱恶性肿瘤，混合了癌瘤和肉瘤的成份是这种肿瘤的特性。