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Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 2 | 16C Oligodendroglioma Grade 2 (Case 16) Ki67 20X 1
The collective features are consistent with recurrent/residual oligodendroglioma, WHO grade 2. Despite the high cellularity of this recurrent tumor, it has low mitotic activity and no microvascular proliferation or necrosis.
