Presentation
Right proptosis.
Patient Data
Well-circumscribed extra-axial mass of the anterior aspect of the right middle cranial fossa with broad-based dural attachment to the greater wing of sphenoid which shows a hyperostosis. It displays an isosignal to the cortical grey matter on T1 and T2 and an iso-to-high signal on FLAIR with intense homogeneous enhancement with a dural tail sign. It extends medially to the ipsilateral cavernous sinus encasing partially the intracavernous segment of the ICA and anteriorly to the intra-and extraconal spaces through the orbital fissures, displacing an atrophied optic nerve medially and the ocular globe anteriorly with non-axial proptosis grade 3.
Case Discussion
MRI features most consistent with sphenoid wing meningioma extending to the cavernous sinus and orbit with proptosis.
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