title: Primary osteosarcoma of the sternum of a dog.
abstract: Primary osteosarcoma of the fifth sternebra is reported in a 6-year-old male Great Dane. Presenting signs were suggestive of myocarditis and pulmonary congestion. Electrocardiography revealed R waves of low and variable amplitude and the plasma alpha-hydroxibutyrate dehydrogenase level was elevated. Radiography revealed neoplasia of the fifth sternebra with extensive bilaterial pulmonary metastases. Histologically the neoplasm showed typical osteosarcoma with plentiful osteoid production.
mesh_terms: D000818:Animals; D001859:Bone Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology; D004285:Dogs; D012516:Osteosarcoma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D013249:Sternum / Q000473:pathology