aorta angiosarcoma (MONDO_0003023, a Monarch Disease Ontology id) is a malignant vascular neoplasm arising from the aorta. Also known as: angiosarcoma (disease) of aorta, angiosarcoma of aorta, angiosarcoma of the aorta, aorta angiosarcoma (disease), aortic angiosarcoma, aortic hemangiosarcoma, hemangiosarcoma of aorta, hemangiosarcoma of the aorta.