Anovestibular fistula in an infant with retroviral infection - case report.

A vestibular fistula with a normal anus is a rare subtype of anorectal malformation seen more often in East Asia and India. Though mostly congenital, some authors have suggested acquired etiologies for this condition. Infants with retroviral infection have been reported to develop acquired rectovestibular fistulas. We report a case of an infant anovestibular fistula in a patient with retroviral infection.