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Washington University Experience | NEOPLASMS (MENINGIOMA) | Anaplastic | 16C Meningioma, Anaplastic (Case 16) Ki67 40X 1
16C Immunohistochemical stains show marked MIB-1 reactivity. ---- Ancillary studies (not shown): There is absence of progesterone receptors and no staining for cytokeratin.
