New onset headaches, left leg intermittent weakness, and intermittent left leg weakness, blurry vision . There is high T2 signal along the posterior mid cerebellar folia bilaterally. There is no evidence of mass or acute infarct. There is trace encephalomalacia in the left more than right posterior parieto-occipital regions, with punctate foci of susceptibility effect. There is also a punctate focus of susceptibility effect in the posterior left insula subcortical white matter. The rest of the supratentorial brain parenchyma appears unremarkable. There is no abnormal intracranial enhancement. 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 orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Abnormality along the posterior mid cerebellar folia bilaterally, as well as trace encephalomalacia in the left more than right posterior parieto-occipital regions may represent prior watershed infarctions or sequale of posterior reversible encephalopathy syndrome. Otherwise, no evidence of acute infarct. 