OMIA 000084 : Atresia ani vaginalis

Cross-species summary: In females, congenital absence of the anus is often accompanied by a rectal-vaginal fistula (tube-like passage between the rectum and vagina), allowing urine and faeces to be voided through the vulvar orifice.

Species in which this phene is found:
sheep (Ovis aries)

Edit History


  • Created by Frank Nicholas on 03 May 2005