has characteristic has characteristic meningioma grade III meningioma NCIT:C38938 grade III meningioma 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. MONDO:0020634 grade 3 meningioma MEDGEN:79186 meningioma, malignant UMLS:C0280801 GARD:0025190 WHO grade III meningioma tumor grade 3, general grading system