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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 13D Oligodendroglioma, Gr3 (Case 13) Ki67 4

Immunohistochemistry for Ki-67 demonstrates a proliferation index of 17.5%. ---- FISH shows codeletion of 1p and 19q. EGFR is not amplified.

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