55-year-old female with persistent dizziness and nausea one month post concussion Diffusion-weighted images show no evidence of restricted diffusion to suggest acute infarct. Redemonstrated are a few scattered punctate foci of T2 hyperintensity within the subcortical white matter which are unchanged. The cerebral and cerebellar hemispheres and brainstem are otherwise normal in signal intensity and morphology. No intracranial hemorrhage, mass, edema or midline shift is noted. No abnormal extra-axial fluid is present. The ventricles and basal cisterns are symmetric and normal in size. The visualized paranasal sinuses and mastoid air cells are normally pneumatized, and the bones of the calvarium are intact.
Redemonstrated are a few scattered punctate foci of T2 hyperintensity within the subcortical white matter which are unchanged.