Fig. 2
a Skin ulcer in the right ankle, the diameter of which was 5 cm. b Multiple skin ulcers around the stoma. c Colonoscopy showed a fistula (arrow head) and stenosis of the bowel lumen (arrow). d Colonoscopy of the oral side colon showed easily hemorrhagic mucosa with a laceration (arrow) after endoscopic insufflation. e A contrast enema study showed a fistula (white arrow) proximal to the anastomosis and the remnant colon indicated that the “lead pipe” phenomenon was present