NCIthesaurus derives from disease has location endothelial cell cell type cancer brain stem cancer brain stem angioblastoma disease_ontology UMLS_CUI:C1332611 NCI:C5147 A brain stem cancer that is characterized by slow growing, highly vascular tumors that develops from the vascular system, has_material_basis_in abnormally proliferating cells derives_from endothelial cells, pericytes and stromal cells. DOID:6501 SNOMEDCT_US_2025_09_01:1351893002 Hemangioblastoma of Brainstem brainstem