Fig. 4From: Gluteal-fold flap repair of rectovaginal fistula caused by aluminum potassium sulfate hydrate-tannic acid injection for internal hemorrhoids: a case reportThe healed site 6 months after the operation. a The gluteal-fold flap is seen in the vaginal vestibule with no fistula recurrence. b Colonoscopy shows no recurrence on the anorectal wall sideBack to article page