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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 2 | 2D Oligodendroglioma Grade 2 (Case 2) MIB 1 1
Ki-67 shows a labeling index of 9.9% ---- Not shown: Only a subset of neoplastic cells are positive for GFAP but many of the cells in the nested component lack GFAP positivity. FISH studies show co-deletion of 1p/19q.
