Large sphenoorbital meningioma with extension into the cavernous sinus

Fig. 1,2,3. Brain and orbits MRI images axial and coronal T1 FS with contrast show a large left sphenoorbital meningioma, involving the left cavernous sinus and extending into the sella, with distortion of the canalicular, cisternal, and proximal orbital segment of the optic nerve and proptosis. Extension into the left middle fossa with mass effect on the medial left temporal lobe and pituitary tissue is noted. The lesion near circumferentially involves the left cavernous carotid artery without significant narrowing

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1. Knosp E, Perneczky A, Koos WT, Fries G, Matula C. Meningiomas of the space of the cavernous sinus. Neurosurgery 1996; 38: 434-442.