title: Fibrosarcoma arising in diverticulum of the urinary bladder.
mesh_terms: D000368:Aged; D004240:Diverticulum / Q000150:complications*; D005354:Fibrosarcoma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D001745:Urinary Bladder Diseases / Q000150:complications*; D001749:Urinary Bladder Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery