Diagnosis: Benign neoplasm of cerebral meningesClinical question: no fiducials. Preop planning for tumor removalsSigns and Symptoms: visual defect There is a 21 x 21 mm axial dimension enhancing mass centered in the right cavernous sinus the broad-based towards the dura. It displaces the pituitary gland towards the left side. It impresses upon and extends into the right Meckel's cave. In general it has not changed significantly since the prior examNormal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
There is a right cavernous sinus mass present which appears stable in dimensions compared to the prior exam. It is suspected to represent a meningioma. It displaces the pituitary gland towards the left and occupies the majority of the right cavernous sinus and extends into the anterior aspect of the right Meckel's cave. The right trigeminal nerve appears to be thickened adjacent to it.