The patient went on to have tumour debulking.
Histology
Path proven oligodendroglioma, WHO grade II.
Note: IDH mutation and 1p19q co-deletion status are not provided, are now required for the diagnosis of oligodendroglioma, although this does seem likely given the age and morphology. It should therefore be denoted as oligodendroglioma not otherwise specified (NOS).
Followup
The patient was on regular MRI brain follow-up after surgical resection and radiotherapy. Subsequent follow-up revealed the development of a small enhancing nodule in the surgical bed (not shown), so recurrence was suspected.