IDH2 and glioblastoma: Consequently, 130 patients were classified into the LGG-IDHm-1p/19q subtype, 130 were classified into the LGG-IDHm subtype, 103 were classified into the LGG-IDHwt subtype, 248 were classified into the GBM-IDH-wt subtype, and 63 were classified into the GBM-IDHm subtype in our cohort.