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Washington University Experience | NEOPLASMS (MENINGIOMA) | Papillary | 1E4 Meningioma, anaplastic, papillary (Case 1) MIB 2

Additional image of the tumor. (Ki67) ---- Fluorescence in situ hybridization (FISH) was performed utilizing probes against CEP9 and the p16 region on 9p21. These tumor cells show evidence of deletion of the p16 / CDKN2A/B / p14ARF region. ---- Comment: This histological/immunohistochemical/genetic pattern fits best as a papillary meningioma, WHO Grade 2

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