Reason: Cavernous sinus meningioma follow up following radiation therapy History: Cavernous sinus meningioma follow up following radiation therapy The CSF spaces are appropriate for the patient's stated age with no midline shift. There is redemonstration of thickening of the cavernous sinuses bilaterally which is unchanged substantially since the previous exam. There is infiltration into the sella turcica and along the posterior aspect of the clivus. Enhancing tumor surrounds the pituitary gland and involves both cavernous sinuses.A burr hole is present along the right frontal bone medially. Immediately below this there is a tract of signal change within in the right superior frontal gyrus, underlying white matter and basal gagnglia presumably related to stereotactic biopsy.Normal 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.
Stable enhancing lesion known to represent en plaque meningioma involving the cavernous sinuses, clivus and sella.