Background & Aims Colorectal cancer (CRC) can be prevented by colonoscopy and
polypectomy. Endoscopic mucosal resection (EMR) is performed to remove large laterally
spreading colonic lesions that have a high risk of progression to CRC. Endoscopically
invisible micro-adenomas at the margins of the EMR site might contribute to adenoma
recurrence, which occurs in 15% to 30% of patients who undergo surveillance. We aimed to
determine the efficacy of adjuvant thermal ablation of the EMR mucosal defect margin in …

Colorectal cancer (CRC) is the third most common cancer as well as the second leading
cause of cancer-related deaths globally (1). In Turkey, CRC is the third most common cancer
at all ages among both sexes (2). Colonoscopy with polypectomy, which is a very effective
method for CRC screening and prevention, can reduce the incidence of CRC by 76%-90%
in appropriately screened individuals (3). Approximately 5% of colonic polyps are lateral
spreading lesions (LSL)≥ 10 mm in size that grow through the bowel walls. Large LSLs (≥ …