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Washington University Experience | NEOPLASMS (MENINGIOMA) | Anaplastic | 12A4 Meningioma, Anaplastic (Case 12) H&E 3
The tumor consisted of cords, sheets, and small nodules of atypical epithelioid cells with eosinophilic cytoplasm and prominent nucleoli. The tumor cells are surrounded and embedded within a highly collagenous matrix. Mitotic figures are easy to identify with up to 11 mitotic figures per 10 high-power fields focally. Brain invasion is also present.
