TY - JOUR T1 - ‘Fish-eye’ polypectomy defect: a new sign during endoscopic mucosal resection? JF - Gut JO - Gut SP - 2413 LP - 2488 DO - 10.1136/gutjnl-2020-323858 VL - 71 IS - 12 AU - Sergei Vosko AU - Neal Shahidi AU - Sunil Gupta AU - W Arnout van Hattem AU - Michael J Bourke Y1 - 2022/12/01 UR - http://gut.bmj.com/content/71/12/2413.abstract N2 - A 75-year-old man was referred for the endoscopic management of an 80 mm large non-pedunculated colorectal polyp (LNPCP) in the sigmoid colon.The lesion was evaluated under white-light (figure 1A), narrow-band imaging and near-focus. Granular nodular-mixed type morphology was identified with a homogeneous surface pattern (Kudo IV, Japan NBI Expert Team IIA) consistent with benign adenomatous histopathology.Figure 1 80mm large non-pedunculated colorectal polyp (LNPCP) in the sigmoid colon.Piecemeal endoscopic mucosal resection was performed (figure 1A,B). After successful resection of the first specimen, defect evaluation revealed a hole within a white cautery ring, most consistent with a perforation without contamination (sydney deep mural injury (DMI) classification type IV1; figure 1D). A viscous amorphous … ER -