Female, 46 years old, with history of MS and paresthesias. Multiple, approximately 15, T2 hyperintense lesions are redemonstrated scattered through the cerebral hemispheres and the brainstem. There has been no significant interval change in the size or number of these lesions. The lesions in most cases correlate with moderate to marked T1 hypointensity which has also not significantly changed.Hyperintensity on the 3-D FLAIR sequences along the floor of the anterior cranial fossa is artifactual as it was not duplicated on a conventional 2-D FLAIR sequence. Susceptibility imaging demonstrates marked artifact in this region probably arising from air in the paranasal sinuses. A 4 x 4 millimeter focus of dural thickening is seen along the left petrous apex projecting into the CP cistern, without significant interval change. No parenchymal edema or mass effect is detected. The ventricles are normal in size and morphology.
1.Stable size and number of lesions compatible with multiple sclerosis.2.Small area of nodular dural thickening along the left petrous apex may represent an incidental meningioma and in any event is unchanged.