#endoscopic resection of large colonic polyp

A 40-year-old woman was admitted to the endoscopy unit. The patient gave a history of right hemicolectomy due to cecal adenocarcinoma and sigmoid polyp (multiple biopsies were taken and revealed colonic adenoma) 6 months ago. The patient underwent a colonoscopy. The scope revealed a large sigmoid polyp 35 cm from the anal verge. Injection of methylene blue dye was applied to the polyp stem, and snare resection was done. What are your options for management? 1- surgical resection. 2- endoscopic resection. If endoscopic resection, choose your best option 1- polypectomy 2- 2- underwater resection 3- 3-polypectomy assisted resection, e.g., use of end loop, 4- 4- ESD 5- 5- other options