History of neurofibromatosis and optic glioma, off therapy. There is no significant interval change in the expanded cisternal and prechiasmatic portions of the right optic nerve and optic chiasm, measuring up to 15 mm in width. There is also no significant interval change in the diffusely expanded left optic nerve, measuring up to 7 mm in width. There is are persistent scattered T2 hyperintensities within the basal ganglia, medial right thalamus, periaqueductal grey matter, right splenium of the corpus callosum, bilateral hippocampi, and right cerebellum. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are unchanged 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.
No significant interval change in the bilateral optic gliomas, right larger than left, and other intracranial stigmata of neurofibromatosis type 1.