Male 48 years old with a cavernous sinus meningioma. Evaluate for change. Again seen is a smoothly marginated, T2 hyperintense, homogeneously enhancing lesion in the right cavernous sinus extending slightly into Meckel's cave on the right. It measures 17 x 14 mm (series 801, image 19) and is not significantly changed in size or appearance. The lesion again partially encases and displaces the right internal carotid artery anteriorly and causes bowing of the lateral wall of the cavernous sinus. There is no significant narrowing of the right ICA flow void. Remainder of the visualized brain parenchyma is unremarkable aside from few punctate foci of T2 hyperintensity in the white matter of the cerebral hemispheres which are unchanged and nonspecific. There is no evidence of intracranial hemorrhage or acute infarct. There is no abnormal parenchymal enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no abnormal extra-axial collection, midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Stable size and appearance of enhancing right cavernous sinus lesion. The differential diagnosis includes meningioma, schwannoma and hemangioma.