Inflammatory myoglandular polyp causing hematochezia

Figure 1 Endoscopy showing a red, hard and spherical peduncular polyp, about 20 mm in diameter, in the descending colon.

Figure 2 Double contrast radiograph of descending colon showing an about 20 mm peduncular polyp.

Figure 3 The second colonoscopy showing a healed polyp.

Figure 4 Microscopic findings of the polypectomy specimen. Low-power view of a cross section showing a stalked polyp containing numerous cystically dilated glands (A) and inflammatory granulation tissue in the lamina propria mucosae and proliferation of smooth muscle (B).