Clinical question: Memory loss. Signs and symptoms: Memory loss. Nonenhanced brain MRI:No diffusion-weighted abnormalities.Examination demonstrates mild periventricular and subcortical foci of FLAIR/T2 hyperintensity with minimal interval progression since prior exam and suggestive of mild nonhemorrhagic chronic small vessel ischemic strokes.The signal intensity of cerebral cortex, bilateral basal ganglia, pons and bilateral cerebellar hemisphere and the vermis remains within normal and similar to prior exam. Punctate focus of T2 hyperintensity however in the left thalamus is noted which was also detected on prior exam.There is revisualization of stable supratentorial ventriculomegaly and prominence of cortical sulci.The signal voids of major intracranial arterial branches are identified.Signal intensity of intracranial venous sinuses are within normal.Calvarium and soft tissues of the scalp are unremarkable.Unremarkable images through the orbits and visualized paranasal sinuses.
1.Negative diffusion-weighted images.2.Mild chronic nonhemorrhagic small vessel ischemic strokes with minimal interval progression since prior exam.3.Stable prominence of supratentorial ventricular system and cortical sulci since prior study.