FUBP1 and oligodendroglioma: Although the primary oligodendroglioma exhibited 1p/19q codeletion, the variants detected did not include changes in FUBP1 and CIC. Only a few variants, in addition to IDH1 R132H and TERT C250T, were observed in the primary tumor that gained predominance and might represent interesting candidate genes for oligodendroglioma development.