 There is no evidence of acute ischemic infarct. No susceptibility weighted abnormalities to indicate hemorrhage. There is a right frontoparietal convexity arachnoid cyst measuring 3.3 cm in width with mass effect upon the underlying brain parenchyma. There is no midline shift. There are mild scattered foci of increased T2 hyperintensity in the periventricular and subcortical white matter. The ventricles and sulci are normal in size. There is no midline shift or herniation. The status of the cerebral flow voids are better depicted on the prior CTA. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
1. No evidence of acute cerebral infarction or intracranial hemorrhage.2. Mild scattered foci of increased T2 hyperintensity in the periventricular and subcortical white matter. 3. Right frontoparietal convexity arachnoid cyst measuring 3.3 cm in width.4. The status of the cerebral flow voids are better depicted on the prior CTA.