Delayed ileal-ileocystoplasty fistula formation: an unusual complication of augmentation enterocystoplasty.

Augmentation enterocystoplasty is a successful treatment for patients with neurogenic bladder dysfunction. Delayed spontaneous bladder rupture is a serious recognised complication of the procedure; however, to our knowledge, delayed fistula formation between the neobladder and the gastrointestinal tract has not been reported in the literature. We report the case of a 21-year-old male who presented with chronic diarrhoea resulting from an ileal-ileocystoplasty fistula 10 years following a successful augmentation enterocystoplasty. Fistula formation is a possible complication of this procedure, and a high index of suspicion is required for patients presenting with diarrhoea who have previously undergone bladder augmentation surgery.