Female, 68 years old, with headache, vertigo and dizziness, and hyperreflexia. Evaluate for structural lesions. Numerous scattered foci of periventricular and subcortical FLAIR hyperintensity are demonstrated without significant change in the quantity or distribution of these lesions. No evidence of edema or mass effect is seen. Diffusion-weighted images are within normal limits. No findings to suggest acute intracranial hemorrhage are detected. A small cystic structure splaying the internal cerebral veins is unchanged. No other abnormal extra-axial collections are seen and the ventricles are stable and normal in size.
1.Numerous scattered foci of FLAIR signal abnormality are again seen. Statistically, these most likely represent chronic microvascular ischemic disease.2.A small cystic structure splaying the internal cerebral veins is unchanged. This could represent a cyst of the cavum vellum interpositum or some other congenital or developmental benign cyst.