Abstract
A common location (∼20%) for meningiomas to occur is along the sphenoid wing. The sphenoid wing extends from the anterior clinoid process medially to the pterional laterally, and can be divided into thirds in which meningiomas involving the medial third are referred to as clinoidal meningiomas, the middle third are referred to as middle sphenoid wing meningiomas, and the lateral third are referred to as lateral sphenoid wing meningiomas. The distinction is important because even though these lesions all involve the sphenoid wing, they involve different neurovascular structures, and therefore have different potential morbidities. Regardless, complication rates range from 20% to 40% for lesions with sphenoid wing involvement. In this chapter, we present a case of a dominant hemisphere lateral sphenoid wing meningioma.