A malignant vascular neoplasm arising from the brain, spinal cord or meninges. The disease is central nervous system angiosarcoma (MONDO_0003021, a Monarch Disease Ontology term). Also known as: CNS angiosarcoma, CNS hemangiosarcoma, angiosarcoma (disease) of central nervous system, angiosarcoma of CNS, angiosarcoma of central nervous system, angiosarcoma of the CNS, angiosarcoma of the central nervous system, central nervous system angiosarcoma (disease).