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Nonenhancing mass involving the overlying right frontal cortex with minor positive mass effect.
This tumor was biopsied and shown to be an oligodendroglioma.
Note: This case predates the recent (2016) revision WHO classification of CNS tumors, and thus molecular markers (IDH mutation and 1p19q co-deletion) are not available. As such, this tumor would now be classified as an oligodendroglioma NOS.