Figure 4: Staged resection of a giant ganglioglioma of lateral ventricles (patient 3). MRI weighted in T1 axial revealed a giant intraventricular tumor (A and E) first resection through a left parietal approach (B and F). (C) and (G) reveal MRI weighted T1 with gadolinium after the second and third steps, with a right frontal approach and resection of the tumor off the body of both lateral ventricles. (D) and (H) depict the MRI weighted T1 with contrast after the fourth step in a left temporal approach and a complete resection