Mass like thickening of both optic nerves involving intraorbital, intracanalicular and intracranial segments (L>R). Lesion on left side is causing mild compression of globe at posterior aspect. Optic chiasma is not involved. Post-contrast study shows mild homogeneous enhancement ( L>R ); findings consistent with bilateral optic nerve gliomas. 

Multiple hyperintense areas involving bilateral globus pallidi, optic tracts, thalami, midbrain and left cerebellar hemisphere consistent with focal areas of abnormal signal intensity (FASI).     

Above findings are most suggestive of neurofibromatosis type 1.