According to the status of IDH1/2 genes, there were 280 IDH wildtype (IDHwt) cases, including 267 GBM, 8 DA, and 5 AA, and 29 IDH-mutant (IDHmut), which harbored IDH1R132, IDH2R140, or IDH2R1721. This evidence concerns the gene IDH2 and glioblastoma.