<prompt> Causes of non-healing of enterocutaneous fistula are all exceptEpithelialization of trackTrack length 3 cmAcute inflammatory diseaseRadiation enteritis  <response>: Enterocutaneous fistulas are most commonly iatrogenic, usually the result of a surgical misadventure.Surgical misadventure leading to Enterocutaneous fistula : Anastomotic leakage. Injury of the bowel or blood supply. Laceration of the bowel by wire mesh or retention suture. 