Guidelines

July 2026: World Endoscopy Organization Position Statements for the Role of Endoscopy on the Diagnosis and Treatment of Superficial Non-Ampullary Duodenal Epithelial Tumors

July 28, 2026

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This position statement, developed by the WEO Stomach and Duodenal Diseases Committee, addresses the role of endoscopy in the diagnosis and treatment of superficial non-ampullary duodenal epithelial tumors (SNADETs). It presents 9 position statements on the diagnostic role of endoscopy, including duodenal inspection, high-definition endoscopy, and image-enhanced endoscopy, and 7 position statements on the management of SNADETs, including endoscopic resection and wound closure.

Authors: Vitor Nunes Arantes, Josué Aliaga Ramos, Fabian Emura, Noriya Uedo, Seiichiro Abe, Hiroyuki Aihara, Naomi Kakushima, Xuemei Liu, Hon Chi Yip, Mario Dinis-Ribeiro, Mitsuhiro Fujishiro, on behalf of the WEO Stomach and Duodenal Diseases Committee.

The full manuscript is available here.

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