Endoscopic treatment of a large colonic polyp as a cause of colocolonic intussusception in a child

Figure 1 Plain abdominal film. A: Completed colonic obstruction on the left side of the colon; B: Barium enema revealed a colonic mass at the splenic flexor after successful reduction.

Figure 2 At the transverse colon, a huge colonic polyp with mucosal invagination confirmed that it was acting as a leading point. Snare polypectomy was applied after successful vascular control with two hemoclips.

Figure 3 The whole mouth capture shows a polypoid mass, with edematous stroma, inflammation, and ulceration. A: Multiple dilated mucous glands and mucin lakes are noted; B: The dilated mucous glands and stromal inflammation (× 2).