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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 5F Oligodendroglioma, anaplastic, Grade 3 (Case 5) p53 2.jpg
Ki-67 demonstrates a proliferation index that is focally as high as 27%. ---- Not shown: p53 is positive in a small subset of tumor nuclei. FISH shows co-deletion of chromosomes 1p and 19q.
