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Washington University Experience | NEOPLASMS (MENINGIOMA) | Rhabdoid | 17D Rhabdoid Meningioma (Case 17) Ki67 20X
A MIB-1 (Ki67) labeling index is moderate to high (7%). ---- The histology and immunohistochemical staining pattern are consistent with that of an atypical meningioma with rhabdoid features, WHO Grade 2.