Endoscopic Surveillance of Duodenal Polyposis After Total Gastrectomy in Familial Adenomatous Polyposis

The lifetime incidence of duodenal polyposis in familial adenomatous polyposis (FAP) approaches 100%, and duodenal cancer is the most common malignancy once colectomy is performed. The incidence of gastric cancer is increasing in patients with FAP, and when gastric polyps with high-grade dysplasia or cancer are present, a total gastrectomy with Roux-en-Y esophagojejunostomy is indicated. The altered anatomy after surgery and presence of adhesions from a previous colectomy make endoscopic surveillance of the duodenum with standard equipment difficult. This case report highlights an approach to duodenal polyposis surveillance in FAP after total gastrectomy with Roux-en-Y esophagojejunostomy.