title: Carcinosarcoma of the urinary bladder. Report of a case with electron microscopy and review of the literature.
abstract: A case of carcinosarcoma of the urinary bladder in a 33-year-old man is presented. The tumor developed from the left anterolateral wall and protruded into the vesical lumen. The excised tumor revealed that more than 99% was sarcomatous component with the appearance of an osteochondrosarcoma. Small foci of papillo-tubular carcinoma were scattered in the sarcomatous area. The histological features, histogenesis and treatment of carcinosarcoma of the bladder are discussed in relation to the literature.
mesh_terms: D000328:Adult; D000368:Aged; D002296:Carcinosarcoma / Q000473:pathology / Q000601:surgery / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D001749:Urinary Bladder Neoplasms / Q000473:pathology / Q000601:surgery / Q000648:ultrastructure*