 There is no evidence of intracranial hemorrhage or acute infarct. There is non-enhancing peri-aquaductal T2 hyperintensity without mass effect. Tectal T1 hyperintensity seen only on the sagittal sequence is compatible with artifact. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is a slightly enlarged cisterna magna. There is no midline shift or herniation. The major cerebral flow voids are intact. The skull, paranasal sinuses, and scalp soft tissues are unremarkable.
Periaqueductal nonenhancing T2 hyperintensity is nonspecific and of uncertain clinical significance though a follow-up MRI in 6 months is recommended to ensure stability. The examination is otherwise unremarkable.