Novel protective retrieval device for a large rectal cancer specimen resected by endoscopic submucosal dissection

Watch a video of this article. Removing large colorectal specimens via the anus, after endoscopic submucosal dissection, is technically challenging, and fragmentation specimen during removal can result in inaccurate pathologic evaluation. Several retrieval techniques have been recently developed.1-3 We modified an existing device, ENDO CARRY (Hakko Co., Tokyo, Japan). The new model, which obtained pharmaceutical approval under consideration for commercialization, has larger drawstring-type bag than that product (Fig. 1a). portion not pulled into sheath, even when it completely closed. Therefore, model cannot pass through endoscope, but novel structure allows protective 1b). A 62-year-old woman with hematochezia underwent colonoscopy, revealed 70-mm protruded lesion, suspected invasion, lower rectum 2a). Endoscopic dissection was attempted to enroll her clinical trial (JCOG1612) investigating efficacy chemoradiation local resection rectal cancer.4 En bloc achieved despite severe muscle-retracting sign.5 Since extremely large, used retrieval. open over tip endoscope 1c), inserted anus. put vision using standard forceps, snare pulled, enclosing bag. fully intact retrieved anus 2b, Video S1). Pathologic diagnosis adenocarcinoma tubulovillous adenoma invasion negative margins, met inclusion criteria trial. This device may be particularly useful elevated lesions, lesions other those if resected up rectum. thank Yoji Takeuchi (Osaka International Cancer Institute) supervising use providing important comments help improve manuscript video. Coren Walters-Stewart, PhD, from Edanz (https://jp.edanz.com/ac) editing draft manuscript. also T Yamaguchi, S Nitta, M Agatsuma Hakko Ltd. provided by All authors declare no conflict interest Please note: publisher responsible content or functionality any supporting information supplied authors. Any queries (other missing content) should directed corresponding author