Adenocarcinoma in an isolated sigmoid urinary conduit.

In recent years the colon urinary conduit has been used more frequently as an isolated urinary conduit at the time of total pelvic exenteration for recurrent carcinoma of the uterine cervix. This avoids an intestinal anastomosis and allows for the colon ureteral anastomosis to be outside of the previous irradiation field. Presented is the third case report of adenocarcinoma occurring in an isolated colonic urinary conduit, suggesting that careful surveillance for such malignancies may be required until the potential of neoplastic change is determined.