This trial is investigating the effects of cells from cells obtained from liposuction for repair of entero-cutaneous fistula. The trial is being conducted at the Instituto de Investigación Hospital Universitario La Paz in Spain plans to recruit 10 subjects with entero-cutaneous fistula. All subjects will receive an injection of fat derived vascular stromal fraction cells directly into the fistula. Participants will be monitored for complications and for fistula healing. The trial is expected to be completed in late 2013.