Figure 1: MRI with gadolinium enhancement of a 1-year-old boy. (a) Preoperative MRI show a huge suprasellar solid gadolinium-enhanced mass lesion (left: axial, center: coronal, right: sagittal section). According to the proposed new system, the tumor was grade V (score: 3+3+1+1+1+3=12). (b) Postoperative MRI with gadolinium enhancement at the last follow-up 5 years after surgery demonstrate total tumor removal without recurrence (left: axial, center: coronal, right: sagittal section).