Current Innovations in Endoscopic Therapy for the Management of Colorectal Cancer: From Endoscopic Submucosal Dissection to Endoscopic Full-Thickness Resection
Figure 2
Difficult lesions with endoscopic treatment. (a) Deeper invasion of the submucosa in colorectal cancer. (b) A laterally spreading tumor occupying more than one-third of the bowel circumference or spanning more than two haustral folds. (c) Remnant lesion. (d) A large pedunculated polyp.
