Prevention and Management of Complications of and Training for Colorectal Endoscopic Submucosal Dissection
Figure 1
Strategy for endoscopic submucosal dissection. (a) 0-IIa tumor, 30 mm, located in the rectum. First, the tumor and its margin were observed carefully. (b) Injection was performed at the anal (distal) side of the tumor. (c) A partial circumferential mucosal incision was made. (d) Submucosal dissection was performed. (e) The tumor was resected en bloc. (f) Resected specimen. Histopathological diagnosis: intramucosal cancer, margin: negative.
