Memory and gait impairment. Rule out normal pressure hydrocephalus. There is no acute infarct or intracranial hemorrhage. There is no mass-effect, midline shift or brain herniation. Punctate T2 hyperintense lesion are present predominantly in the frontoparietal white-matter. There is enlargement of the lateral and third ventricles while the fourth ventricle is normal size. However, the basal cisterns and the sulci are also prominent. The orbits are grossly unremarkable. The mastoid air cells are clear. There is mild maxillary and ethmoid sinus mucosal thickening. There is no destructive skull lesion.
1.Diffuse volume loss without a specific lobar predominant atrophy pattern.2.Chronic small vessel ischemic disease.