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Washington University Experience | NEOPLASMS (GLIAL) | Glioblastoma, primitive neuronal component | 1D2 GBM (Case 1) Ki67 20X area B
Higher magnification of the primitive neuronal complement which shows strongly immunoreactive Ki67 staining. (Ki67 IHC) ---- Additional information (not shown): The tumor is negative for IDH1 mutant R132H protein ---- FISH analysis provided no evidence of MYCN gene amplification and MCN signal analysis was not informative. MGMT (O(6)-methylguanine-DNA methyltransferase) gene methylation was detected.