title: Radiopaque foreign body in the caudal portion of the abdomen.
mesh_terms: D000818:Animals; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging; D002371:Cat Diseases / Q000000981:diagnostic imaging*; D002415:Cats; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000662:veterinary*; D011859:Radiography