Imaging Characteristics of the Spheno-Orbital Meningioma: Literature Review

Spheno-orbital \ meningioma is a subtype of ectopic meningiomas in which meningothelial cells invade the bone wall and lead to hyperostosis [1]. They originate from the meninge of the sphenoid ridge and invade the orbit after infiltrating the underlying sphenoid wings, and sometimes extend to involve the optic canal or the sphenoidal fissure. It is typically benign, with a slow evolution, asymptomatic, and often incidentally discovered during imaging evaluation, exophthalmos remains the predominant clinical sign. We report the case of a 49-year-old female patient who presents with progressive onset left unilateral exophthalmos. Examination reveals non-reducible, painless axial exophthalmos. The aim of this case is to describe imaging characteristics of spheno-orbital meningioma and to review the literature on this subject.