title: [Primary obstructed megaureter with preureteral vena cava and renal pelvic tumor: report of a case].
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000473:pathology; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications* / Q000473:pathology; D007682:Kidney Pelvis; D008297:Male; D008875:Middle Aged; D014513:Ureter / Q000002:abnormalities* / Q000473:pathology