Fig. 2

MRI examination of PRNN and Overall survival in PRNN and non-PRNN groups. A: Transverse T1-weighted image; B: Transverse contrast-enhanced T1-weighted image; C: Transverse T2-weighted image; D: Coronal T1-weighted image; E: Coronal contrast-enhanced T1-weighted image; F: Kaplan–Meier curves of overall survival in PRNN and non-PRNN groups