Since the recognition of adenomatous polyps as a precursor to colorectal cancer (CRC), the early identification and treatment of colonic lesions has received great attention. Colorectal polypectomy has become a means of cancer prevention with evidence of a reduction in the predicted morbidity and mortality from colorectal malignancies.

Endoscopic submucosal resection may be indicated for people with early-stage esophageal cancer or precancerous lesions. This technique has the advantages of being minimally invasive, highly effective in curing cancer, and with a quick recovery time.