Band ligation-assisted endoscopic mucosal resection of an intradiverticular polyp

With over 140,000 new colorectal cancer cases anticipated in 2020 by the American Cancer Society, colonoscopy remains a standard of care in the screening and further evaluation of precancerous colorectal lesions.1 Although a trained gastroenterologist is able to routinely perform screening colonoscopies as part of daily practice, the location of some polypoid lesions might pose a challenge. Colonic diverticula pose a particular challenge because they lack or have a weakened layer of muscularis propria owing to focal wall weakness and increased intraluminal pressures,2 thus increasing the risk of perforation with intervention. We present the case of a healthy 50-year-old man who was seen for routine colonoscopy and was found to have diverticular disease and a polyp arising from a diverticulum in the descending colon.