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  • Title: [OTSC-assisted resection of a duodenal neuroendocrine tumor: a case report].
    Author: Schempf U, Kratt T, Hoetker M, Stüker D, Plentz RR, Malek NP, Goetz M.
    Journal: Z Gastroenterol; 2015 Mar; 53(3):205-7. PubMed ID: 25775170.
    Abstract:
    The over the scope clip (OTSC) is mainly used for closure of gastrointestinal endoluminal defects and treatment of gastrointestinal bleeding. Its use for resection of subepithelial tumors or full-thickness resection is still under investigation. Duodenal neuroendocrine tumors (NET) are rare neoplasms. Endoscopic resection is appropriate up to a size of 20  mm, however positive deep margins are a frequent challenge in these subepithelial tumors. We report on a 60-year-old male patient who had undergone endoscopic mucosal resection with R1 deep margins of a NET (G1) in the duodenal bulb. To avoid local surgical resection in this multimorbid patient, we performed OTSC-assisted deep resection. Complete resection (R0) was achieved, and no complications occurred. Our report suggests that OTSC-assisted resection of subepithelial tumors is a possible and safe option, especially for patient's and in locations with a high perioperative risk.
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