Atresia ani and rectovaginal fistula in an acaudate filly.
D000818:Animals; D001006:Anus, Imperforate / Q000662:veterinary*; D003050:Coccyx / Q000002:abnormalities*; D005260:Female; D006734:Horse Diseases / Q000151:congenital*; D006736:Horses; D012006:Rectovaginal Fistula / Q000151:congenital / Q000662:veterinary*