Evaluating Adenoma Recurrence After Endoscopic Mucosal Resection With Margin Marking or Post Treatment With Snare Tip Soft Coagulation

Inclusion Criteria: 1. Age 18 years or older 2. Ability to provide informed consent 3. Patient scheduled to undergo colonoscopy for the evaluation and removal of colon polyps 4. Non-pedunculated polyps ≥ 20 mm size Exclusion Criteria: 1. Pedunculated polyps 2. Inflammatory bowel disease 3. Inability to provide informed consent 4. Lesions \< 20 mm in size (largest dimension) 5. Lesion involves the lips of the ileocecal valve, is located at the appendiceal orifice and/or is fully circumferential. 6. Any standard contraindication, including pregnancy, to anesthesia and/or colonoscopy