[Perineal urinary fistula after excision of the rectum 3 cases].

On the basis of three cases, the authors study the problem of perineal urinary fistula secondary to rectal surgery. They first note that little attention has been devoted to these lesions. The clinical and radiological features are described and analysed, in a pathological context. Treatment of these fistulae is difficult if a conservative approach is sought, and the best solution is perhaps nephrectomy or bypass by a Bricker operation carried out either initially or after an attempt at repair has failed.