Endoscopic treatment and management of rectal neuroendocrine tumors less than 10 mm in diameter

Figure 5 Endoscopic submucosal dissection. A: A pale yellow mass with a diameter of about 6 mm in the rectum; B: Submucosal injection of the mass with an injection needle; C: Circumferential resection of the submucosa of the mass with a mucosal resection knife; D: Mass dissection with a resection knife; E: Wound surface after the removal of the mass; F: Wound clipping with titanium clips after mass resection.