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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 3E1 Oligodendroglioma, anaplastic, WHO Grade 3 (Case 3) MIB WM (2)
3E1,2 Immunostaining for Ki67 shows a proliferation rate of 24% in the hypercellular region of the tumor.