Figure 1.

(a-d) Case 1: (a) Contrast-enhanced computed tomographic scan demonstrating a cortical lesion of the left frontal lobe, with surrounding edema with mass effect, homogeneously enhanced. (b) Coronal T2-weighted magnetic resonance imaging demonstrating a hypointense with the gray matter cortical lesion. (c) Coronal T1-weighted magnetic resonance imaging with gadolinium enhancement demonstrating left frontal not-well defined strongly enhancing mass with mass effect and leptomeningeal spread through Sylvian fissure. (d) Postoperative contrast enhanced computed tomographic scan demonstrating gross total excision