2020-03-062020-03-062020-03-062001-11-301982-0151http://localhost:8080/handle/prefix/1069Hemangiosarcoma is a malignant neoplasm of endothelial cells, common in elderly dogs. The present work describes the case of a hemangiosarcoma located in the right atrium, liver and spleen of a 12-year-old dog with a history of sudden death. The necroscopic examination revealed rupture of the atrial and hemopericardial neoplasia. Histopathological and immunohistochemical tests allowed the definitive diagnosis of the neoplasm.Acesso AbertoMedicina VeterináriaCãoHemangiossarcomaCoraçãoCNPQ::CIENCIAS AGRARIASArtigo de Evento