_:vb50954807 . _:vb50954808 . _:vb50954808 . . _:vb50954808 . _:vb50954807 . _:vb50954807 . "brain stem angioblastoma"^^ . "NCI:C5147"^^ . _:vb50954808 . _:vb50954807 . "UMLS_CUI:C1332611"^^ . . "disease_ontology"^^ . _:vb50954807 . . . _:vb50954808 . . "Hemangioblastoma of Brainstem"@en . "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"^^ .