Exposed endoscopic full-thickness resection for duodenal submucosal tumors: Current status and future perspectives

Figure 1 Duodenal exposed endoscopic full-thickness resection without laparoscopic assistance with defect closure using endoscopic suturing system. A: Endoscopic view of a submucosal lesion located in the duodenal bulb; B: Circumferential mucosal and submucosal incision; C: Exposed endoscopic full-thickness resection of the tumor and creation of “active perforation”; D: Transmural defect of the duodenal bulb; E: Full-thickness defect closure by means of OverStitch endoscopic suturing system; F: Endoscopic view of the resection site on post-operative day 60.