Fig. 4

Computed tomography (CT) and magnetic resonance imaging (MRI) images of patient one. Pre-operative non- contrast computed tomography (CT) scan shows the right frontal falx meningioma with calcification and left frontal mass lesion (axial view) (a). T1-weighted images with gadolinium contrast. Coronary (b) and sagittal (c) views showed the right frontal falx meningioma and the left frontal and corpus callosum high-grade glioma