In the univariate analysis, a normal serum LDH level (p = 0.002), an ECOG performance score of 2–3 (p = 0.001), lower risk IELSG group (p = 0.001), unifocal tumor pattern (p = 0.017), no CSF seeding (p = 0.005), homogeneous enhancement on MRI (p = 0.004), gross total tumor resection (p = 0.003), negative immunoreactivity of BCL2 (p < 0.001), negative immunoreactivity of p53 (p = 0.003), negative immunoreactivity of MUM1 (p = 0.001), and negative immunoreactivity of c-Myc (p < 0.001) were associated with long PFS (Table 4). This evidence concerns the gene BCL2 and neoplasm.