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Washington University Experience | NEOPLASMS (MENINGIOMA) | Anaplastic | 3B2 Meningioma, anaplastic (Case 3) 40X
Higher magnification of the tumor. (H&E) ---- Ancillary results (not shown): GFAP confirms the presence of glial parenchyma abutting the meningioma, without invasion by meningioma. PR shows reduced expression. Finally, Ki-67 reaches 22.6%. This meningioma is best classified as an anaplastic meningioma (WHO grade III).
