Endoscopic ultrasound in the assessment of advanced duodenal adenomatosis in familial adenomatous polyposis.

Objective: Current surveillance strategies for duodenal adenomatosis in familial adenomatous polyposis (FAP) miss malignancies and underestimate cancer risk in ampullary disease. This study aimed to evaluate the utility of endoscopic ultrasound (EUS) in the assessment of FAP patients with duodenal and/or ampullary polyposis referred for surgical intervention.

Design: A retrospective analysis of FAP patients undergoing index EUS between December 2006 and May 2015 was performed.