Rectourinary fistula with a narrow urethra.

A rectourinary fistula is a common accompaniment of anorectal malformations (ARM) in boys. Most boys pass urine normally after reconstruction and closure of the fistula, but a few have serious problems because of a narrow urethra. In our series, a narrow urethra was encountered in three types of male ARM: 3 rectourethral fistulae, 4 rectovesical fistulae, and 6 H-fistulae. We have studied the diagnostic and therapeutic problems that a narrow urethra produces in patients afflicted with each of these malformations.