title: Thyroid adenocarcinoma in a bald eagle (Haliaeetus leukocephalus).
abstract: Thyroid adenocarcinoma was diagnosed in an adult bald eagle (Haliaeetus leukocephalus) with clinical signs of weakness manifested by inability to fly. Physical examination at the time of admission revealed dried blood in the pharynx and glottis and the presence of pharyngeal trichomonads. Radiographs revealed a large soft tissue mass in the area of the left coracoid and clavicular bones. One month following successful treatment for trichomoniasis, the bird suffered an acute episode of tracheal hemorrhage and died. Necropsy revealed a large mass within the interclavicular air sac. The histologic features were consistent with thyroid adenocarcinoma. This is the first report of thyroid neoplasia in a member of the order Falconiformes.
authors.affiliation: Animal Center, Helena, Montana 59601, USA.
authors.forename: G
authors.initials: G
authors.lastname: Bates
authors.forename: R L
authors.initials: RL
authors.lastname: Tucker
authors.forename: S
authors.initials: S
authors.lastname: Ford
authors.forename: M E
authors.initials: ME
authors.lastname: Mattix
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D000818:Animals; D000994:Antitrichomonal Agents / Q000627:therapeutic use; D001715:Bird Diseases / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology*; D020307:Eagles; D005260:Female; D006470:Hemorrhage / Q000209:etiology / Q000662:veterinary; D008795:Metronidazole / Q000627:therapeutic use; D010608:Pharyngeal Diseases / Q000150:complications / Q000188:drug therapy / Q000662:veterinary; D011859:Radiography; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D014133:Tracheal Diseases / Q000209:etiology / Q000662:veterinary; D014245:Trichomonas Infections / Q000150:complications / Q000188:drug therapy / Q000662:veterinary
chemical_list: D000994:Antitrichomonal Agents; D008795:Metronidazole