We analyzed the differences between LGG and normal samples and the expression differences between subgroups of pathological parameters (p < 0.001, Figure 6(a)), including IDH status (Mut vs. WT), histological type (Oligodendroglioma and Oligoastrocytoma versus Astrocytoma), 1p/19q codeletion (noncodel vs. codel), WHO grade (G3 vs. G2), OS (Alive vs. Dead), DSS (Alive vs. Dead), and PFI (Alive vs. Dead). The gene discussed is IDH2; the disease is astrocytoma (excluding glioblastoma).