Ruptured aneurysm of the uterine artery.
D000783:Aneurysm / Q000175:diagnosis / Q000662:veterinary*; D000818:Animals; D005260:Female; D006734:Horse Diseases / Q000175:diagnosis*; D006736:Horses; D011247:Pregnancy; D011644:Puerperal Disorders / Q000175:diagnosis / Q000662:veterinary*; D012422:Rupture, Spontaneous; D014599:Uterus / Q000098:blood supply*