Successful endoscopic closure of a colonic perforation one day after endoscopic mucosal resection of a lesion in the transverse colon

Figure 3 Emergency colonoscopy in a man in his 70s with colonic perforation after endoscopic mucosal resection of a large polyp. A: Brown intestinal juice was seen inside the colon, but there was no food residue; B: The endoscopic mucosal resection ulcer was reddish and edematous; C: The ulcer floor was observed, but perforation was not obvious at that time; D: Endoscopic closure with clips was successfully performed.