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Findings on colonoscopy. A) 0-Ip (pedunculated) polyp estimated 25–30 mm maximal diameter in the sigmoid colon, initial endoscopy. B) 0-Is (sessile) polyp estimated 5–7 mm maximal diameter, repeat sigmoidoscopy. C) 0-Is (sessile) polyp estimated 30 mm maximal diameter in the sigmoid colon, a follow-up colonoscopy.
