glioblastoma NCI:C9094 glioblastoma multiforme DOID:3080 UMLS_CUI:C1514422 SNOMEDCT_US_2020_03_01:63634009 UMLS_CUI:C0278878 disease_ontology An astrocytoma characterized by the presence of small areas of necrotizing tissue that is surrounded by anaplastic cells as well as the presence of hyperplastic blood vessels, and that has_material_basis_in abnormally proliferating cells derives_from multiple cell types including astrocytes and oligondroctyes. MESH:D005909 NCI:C39750 DOID:3075 NCI:C3058 DOID:3068 GARD:2491 GBM UMLS_CUI:C0017636 adult glioblastoma multiforme grade IV adult Astrocytic tumor primary glioblastoma multiforme spongioblastoma multiforme astrocytoma