Fig. 3From: Persistent urogenital sinus with recto-vaginal fistula: the new variant in which the anus is normally positioned and literature reviewa Persitant urogenital sinus. b The cloacal variant. c Posterior cloacal variant. d Persistant urogenital sinus with recto-vaginal fistula (A, anus; R, rectum; U, uterus; B, bladder; F, fistula; UGS, urogenital sinus)Back to article page