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

A 73-year-old man underwent endoscopic mucosal resection (EMR) of a 20-mm flat elevated lesion on the transverse colon. The morning after the procedure, he started to have severe right upper quadrant pain after his first meal. A computed tomography scan revealed free air and a stomach filled with food. He was diagnosed to have delayed post-EMR intestinal perforation. He underwent emergent colonoscopy and clipping of the perforated site. He was discharged 8 d after the endoscopic closure without the need for surgical intervention. The meal was not the cause of the colon transversum perforation.