Skin lesion in a patient with Hirschsprung's disease complicated with short bowel syndrome: what is your diagnosis?

A 13-year-old boy with Hirschsprung's disease complicated with intestinal-cutaneous fistula, short bowel syndrome and malnutrition presented to our hospital after thirst and decrease of urine output for 3 days. He had received primary laparoscopy-assisted endorectal pull-through (LAERPT) for Hirschsprung's disease when he was 4 months old, but he had performed eight more operations for complications, resulting in loss of the majority of small and large bowels. …