title: Osteoma in a blue-fronted Amazon parrot (Amazona aestiva).
abstract: Osteoma is an uncommon bone formation documented in avian species and other animals. A blue-fronted Amazon parrot (Amazona aestiva) with clinical respiratory symptoms was examined because of a hard mass present on the left nostril. Radiographs suggested a bone tumor, and the mass was surgically excised. Histopathologic examination revealed features of an osteoma. To our knowledge, this is the first description of an osteoma in a blue-fronted Amazon parrot. Osteoma should be considered as a differential diagnosis in birds with respiratory distress and swelling of the nostril.
authors.affiliation: Cell Proliferation Laboratory, Department of Pathology and Legal Medicine, Medicine School of Ribeirão Preto, University of São Paulo, Bandeirantes Avenue, 3900, Monte Alegre, CEP:14049-900, Ribeirão Preto-SP, Brazil.
authors.forename: João Felipe Rito
authors.initials: JF
authors.lastname: Cardoso
authors.affiliation: Zona Sul Veterinary Clinic, Francisco Sa Street, 35, Copacabana, CEP: 22080-010, Rio de Janeiro - RJ, Brazil.
authors.forename: Marcelo Guilherme Bezerra
authors.initials: MG
authors.lastname: Levy
authors.affiliation: Laboratory of Anatomic-Pathology, Anhanguera Educational, Cabuçu Street, CEP: 24859-640, Itaborai - RJ, Brazil.
authors.forename: Flavia
authors.initials: F
authors.lastname: Liparisi
authors.affiliation: Departament of Veterinary Clinical Pathology, Fluminense Federal University, Vital Brazil Filho Street, 64, CEP: 24230-340, Vital Brazil, Niteroi RJ, Brazil.
authors.forename: Mario Antonio Pinto
authors.initials: MA
authors.lastname: Romão
mesh_terms: D046708:Amazona; D000818:Animals; D001706:Biopsy / Q000662:veterinary; D001715:Bird Diseases / Q000473:pathology* / Q000601:surgery; D008297:Male; D010016:Osteoma / Q000473:pathology* / Q000601:surgery