Background:

subtotal colectomy with ileorectal anastomosis (IRA) is currently the most common surgical option in young patients with familial adenomatous polyposis (FAP). However, this surgery does prevent the appearance of lesions in the rectal remnant. In these cases, the endoscopic submucosal dissection might be a feasible option. However, drawbacks such as extreme fibrosis and a difficult maneuverability in the rectal remnant make this technique rather challenging. An ESD by the pocket creation method was planned with the purpose of overcoming these handicaps.

Case report:

an en-bloq resection of 30 mm of the recurrent adenoma located in rectal remnant of a 42-year-old woman with FAP was successfully achieved following this approach. Two months of follow up endoscopy did not show residual adenomatous tissue.

Discussion:

in summary, endoscopic submucosal dissection by the pocket creation method allowed a safe and effective dissection and an en-bloc resection of this challenging polyp was achieved.

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