Abstract
A 57-year-old man presented for resection of a lateral wall duodenal polyp. Previous upper endoscopy demonstrated the large duodenal polyp, and biopsies revealed a tubulovillous adenoma with low-grade dysplasia. A CT scan identified the 3 × 5-cm multilobulated polyp beginning below the ampulla in the second and proximal third duodenum. A therapeutic upper endoscope was advanced to the second duodenum where the polyp was identified (Fig. 1A). EMR was performed by using a standard polypectomy snare after the polyp was fully lifted (Fig. 1B; Video 1, available online at www.giejournal.org).
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