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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 3C Oligodendroglioma, anaplastic, WHO Grade 3 (Case 3) GFAP 2
There are some tumor cells in the less densely cellular areas that are positive for glial fibrillary acid protein (GFAP) but the majority are negative as is particularly the case in the hypercellular region.