Fig. 3

Kaplan–Meier curves for (A) progression-free survival (PFS), (B) overall survival (OS), and (C) metastasis-free survival (MFS) of the gross total resection (GTR) + postoperative radiotherapy (PORT) cohort and GTR cohort. The GTR + PORT cohort showed higher 3-, 5-, and 10-year PFS and OS, while MFS showed no significant difference between the groups.