Source:http://linkedlifedata.com/resource/umls/id/C0280801
NCI: A malignant neoplasm of the meninges.,NCI: A malignant meningioma with aggressive clinical course. It recurs in approximately 50-78% of the cases. This category includes the anaplastic (malignant) meningioma, papillary meningioma, and rhabdoid meningioma.