| umls-concept:C0334590 | skos:definition | NCI: A malignant neoplasm of the central nervous system arising from oligodendrocytes, exhibiting poor differentiation (anaplasia).,NCI: A WHO grade III oligodendroglioma with focal or diffuse malignant morphologic features (prominent nuclear pleomorphism, mitoses, and increased cellularity). | lld:umls |
