The various types of anorectal fistula in male imperforate anus.

The purpose of this paper is to provide a review of the anorectal fistulas occurring in male imperforate anus, with a suggested classification based on the site of termination of the fistula, namely, the bladder, the urethra, and the perineum. The fistulas included in these categories are discussed in some detail, with reference to previous cases or descriptions in the literature and with some personal observations.