Possible Lewy body dementia: hallucinations, agitation, and dementia. Many of the images are degraded by patient motion. There is patchy periventricular white matter T2 hyperintensity, particular in the bilateral parietal lobes. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is no abnormal intracranial enhancement. There is mild diffuse cerebral volume loss. 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.
1. Mild diffuse cerebral volume loss without discernible focal atrophy. Nevertheless, a brain PET scan may be useful for further evaluation of Lewy body dementia.2. Nonspecific patchy periventricular white matter T2 hyperintensity, particular in the bilateral parietal lobes may represent chronic small vessel ischemic disease.3. No evidence of intracranial hemorrhage, mass, or acute infarct. 