The failure of an enterocutaneous fistula to heal on a regimen of total parenteral nutrition and antisecretory therapy may be due to which of the following?
A. A foreign body in the fistula tractFactors which prevent healing of an enterocutaneous fistula include foreign body, epithelialization of the fistula tract, downstream obstruction, radiation enteritis, associated infection (abscess or sepsis), malignancy, and a short ( <2 cm) fistula tract.