Post written by Ippei Tanaka, MD, from the Department of Gastroenterology, Sendai Kousei Hospital, Miyagi, Japan.

A 72-year-old woman had a duodenal polyp at the superior duodenal angle (SDA). We performed cap-assisted endoscopic mucosal resection (EMRC) and successfully removed the lesion.

Endoscopic observation and resection of duodenal polyps at SDA are extremely difficult because of the poor maneuverability of the scope and anatomical complexity. This article describes a case of a duodenal polyp at SDA, for which it was difficult to even confirm the presence of a polyp without a hood and successfully treat by EMRC.

It is sometimes difficult to resect the duodenal polyp at SDA by usual endoscopic mucosal resection or endoscopic submucosal dissection because of the technical difficulties and the possibility of residual polyp after treatment. In this case, EMRC is a good option.

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