Intussusception of the ureter by a polypoid transitional cell carcinoma.
D002295:Carcinoma, Transitional Cell / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014515:Ureteral Diseases / Q000209:etiology*; D001749:Urinary Bladder Neoplasms / Q000150:complications*