Duodenal and rectal obstructions due to urothelial cancer infiltration from recurrent renal pelvic cancer in the bladder wall: An autopsy case

Duodenal and rectal obstructions due to urological malignancies are relatively uncommon. We report an autopsy case of an 83-year-old man with a history of renal pelvic cancer who presented these obstructions. Autopsy revealed that urothelial cancer infiltrated the bladder wall, duodenal wall, rectal wall, and prostate and widely spread in the retroperitoneal lymphatic vessel. We concluded that renal pelvic cancer recurred in the bladder wall and then infiltrated into each organ because of lymphatic dissemination. The gastrointestinal obstructions due to urinary tract cancer were lethal. Further knowledge and clinical experience regarding these types of obstructions are crucial.