Hemangioma Metastasis In Dogs. Hemangiosarcomas can arise anywhere from blood vessels. There may be singular or multiple.
Hemangiosarcoma is more common in dogs than any other animal species, humans included. Hsa in dogs is an aggressive, malignant cancer within the blood vessels. The lesion measured 1.24 × 1.10 × 0.93 cm and was reported as potentially representing a metastatic lesion or an atypical vertebral body hemangioma.