Abstract

With the advent of screening for colorectal cancer and greater awareness of colorectal neoplasia symptoms, increasing numbers of large (>3 cm) sessile or flat rectal polyps are being detected. As polyps become larger, there is an increased risk that they contain submucosally invasive cancer; therefore, radical and complete resection of these high-risk lesions is mandatory. Piecemeal endoscopic mucosal resection is quick, safe, and technically relatively easy; however, it is associated with high recurrence rates, need for close endoscopic follow-up, and provides less than optimal histologic staging.

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