Metastatic osteoblastic osteosarcoma in a captive scarlet macaw (Ara macao)

作者：Larissa Giannini Alves Moreira, Thaynara Parente de Carvalho, Ayisa Rodrigues Oliveira, Daniel Oliveira dos Santos, Nayara Ferreira de Paula, Herlandes Penha Tinoco, Carlyle Mendes Coelho, Renato L. Santos · 发表于：Brazilian Journal of Veterinary Pathology · 年份：2020 · DOI：10.24070/bjvp.1983-0246.v13i3p602-608 · 被引用次数：5 · 研究领域：Bird parasitology and diseases、Animal Virus Infections Studies、Veterinary Oncology Research

Osteosarcoma is a malignant primary tumor of the bone, which is considered rare in birds. This report describes an osteoblastic osteosarcoma in a scarlet macaw (Ara macao), which was apathetic with progressive weight loss, and had a tumor in the distal portion of the femur and proximal tibiotarsus with ulcerated pododermatitis in the contralateral limb. Euthanasia was elected due to poor diagnosis after radiographic and cytological examination. Histopathology and immunohistochemistry were performed and confirmed the diagnosis of an osteoblastic osteosarcoma with hepatic and pulmonary metastases.