NF type 1 with visual changes with eye exam. Brain: There are T2 hyperintense lesions in the medial cerebellar hemispheres and periventricular white matter adjacent to the frontal horns bilaterally. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The intracranial portions of the optic nerves and optic chiasm are unremarkable. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.Orbits: There appears to be high T2 signal in the orbital and canalicular portions of the optic nerves bilaterally, left more than right, without appreciable expansion of the optic nerves. The bilateral globes and ocular adnexa are unremarkable. There is no evidence of abnormal intraorbital enhancement.
1. Lesions in the medial cerebellar hemispheres and periventricular white matter adjacent to the frontal horns bilaterally likely represent stigmata of neurofibromatosis type 2. Apparent signal abnormality in the orbital and canalicular portions of the optic nerves bilaterally, left more than right, without appreciable expansion of the optic nerves may nevertheless represent optic gliomas versus artifact.