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Sessile serrated lesions (sessile serrated adenomas or polyps), particularly in the proximal colon, are increasingly recognized as premalignant lesions, which require removal; however, to remove these flat and indistinct lesions in the thin-walled right colon can be technically demanding. In this article, en bloc endoscopic mucosal resection technique is demonstrated for a 12-mm sessile serrated lesion in the proximal colon. This article is part of an expert video encyclopedia. © 2013 Elsevier GmbH.

Original publication




Journal article


Video Journal and Encyclopedia of GI Endoscopy

Publication Date





321 - 322