Adenocarcinoma arising from along the rectal stump after double-stapled ileorectal J-pouch in a patient with ulcerative colitis: the need to perform a distal anastomosis. Report of a case.

Patients treated with restorative proctocolectomy for ulcerative colitis occasionally develop neoplasia from the rectal mucosal remnants. We report a case of a 65-year-old male who developed an adenocarcinoma from the rectal stump after a double-stapled ileorectal J-pouch for ulcerative colitis. We emphasize the need to perform the anastomosis either at the level of the dentate line or just cephalad to the anal transitional zone. Furthermore, when high-grade dysplasia at the rectum is evident, either an ileal pouch-anal anastomosis with mucosectomy or completion proctectomy with an end Brooke ileostomy should be offered. This is the second report in the literature of a carcinoma arising after use of the double-stapled ileal pouch-anal anastomotic technique.