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Washington University Experience | NEOPLASMS (MENINGIOMA) | Brain Invasion | 16A3 Meningioma, Grade II Brain invasion (Case 16) H&E 20X
Additional relevant image. (H&E) ---- Immunohistochemical stains (not shown). EMA is focally positive. PR is lost in a subset of tumor cells. Ki-67 highlights of proliferative index that focally reaches up to 12.4%.
