title: Coexisting leiomyosarcoma and transitional cell carcinoma of the urinary bladder.
abstract: A rare case of coexisting sarcoma and carcinoma of the urinary bladder is reported and the literature is reviewed. Because of the differences in the histogenesis and prognosis, such cases should be differentiated from cases of carcinosarcoma of the urinary bladder.
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D006801:Humans; D007890:Leiomyosarcoma / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D001743:Urinary Bladder / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*