Aortic body tumor in a duck.
D000818:Animals; D000836:Animals, Zoo; D001016:Aortic Bodies / Q000473:pathology; D001715:Bird Diseases / Q000473:pathology*; D004372:Ducks; D008297:Male; D010234:Paraganglia, Nonchromaffin; D010236:Paraganglioma, Extra-Adrenal / Q000473:pathology / Q000662:veterinary*; D010490:Pericardial Effusion / Q000473:pathology / Q000662:veterinary