 There is unchanged patchy nonenhancing increased T2 signal in the medulla extending into the posterior pons. There is unchanged mild increased T2 signal in the right cuneus without mass effect. There are scattered subcortical and periventricular white matter T2 hyperintensities again seen. The ventricles are unchanged with no hydrocephalus. There is no acute infarct, mass effect or midline shift. There are unchanged postoperative findings the occipital scalp. There is a stable small CSF intensity collection likely postsurgical adjacent to the lateral right cerebellar hemisphere without significant change. There are retention cysts in the bilateral maxillary sinuses.
Stable exam with no significant change in patchy T2 hyperintense signal in the brainstem. Of note, overall appearance is much improved since remote MRI from 8/2/2011.