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Washington University Experience | NEOPLASMS (MENINGIOMA) | Angiomatous | 11B9 Meningioma (Case 11) H&E 9
Additional illustrative image.(H&E). ---- Additional findings (not shown): Immunohistochemistry for progesterone receptor (PR) shows focal positive staining of tumor cells. Ki-67 shows a proliferation index of 3%. The morphological and immunohistochemical features are most consistent with an angiomatous meningioma (WHO Grade I).