Oligodendroglioma NOS


The patient underwent right frontal craniotomy and debulking of the right frontal tumor. Histology showed oligodendroglioma WHO grade II.

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.