Sphenoid wing meningiomas are slow growing tumors that originate from outer arachnoid meningeal epithelial cells. They are the most common tumor of the intracranial space to spread to the orbit.

2022年5月9日 · Olfactory groove meningiomas are located between your brain and nose at the base of your skull. They grow near your olfactory nerve, which is responsible for your sense of smell. Sphenoid wing meningiomas, which form along a ridge of bone behind your eyes.

Sphenoid wing meningiomas are diagnosed by the combination of suggestive symptoms from the history and physical and neuroimaging by magnetic resonance imaging (MRI) or computer averaged tomography (CT).

Medial sphenoid wing meningiomas are a heterogeneous group of tumors originating from the anterior clinoid and the medial third of the lesser sphenoid wing. This group includes both globular and hyperostotic en plaque tumors (also called “spheno-orbital” meningiomas).

Meningiomas of the sphenoid wing are traditionally divided into three types: lateral (outer), middle, and medial (inner). The outer sphenoid wing meningiomas are usually accompanied by epilepsy, focal weakness, and trouble with language function when present on the left side.

2023年4月7日 · Sphenoid wing meningiomas are the most common of the basal meningiomas. Medially, they may expand into the wall of the cavernous sinus, anteriorly into the orbit, and laterally into the...

Sphenoid wing meningiomas, also known as sphenoid ridge meningiomas, are the most common of the basal meningiomas. They usually arise from the lesser wing of the sphenoid bone (a compound bone with wing-like processes, situated at the base of the skull).

Medial sphenoid wing meningiomas are among the three most common intracranial meningiomas. They present a challenge to neurosurgeons, especially when they invade critical neurovascular structures and the cavernous sinus.

2023年4月7日 · Total microsurgical resection of sphenoid wing meningioma usually is curative. A recurrence risk approaching 30% has been reported when incomplete removal is attempted.

Brain magnetic resonance imaging (MRI) showed progression of a sphenoid wing meningioma invading the left optic nerve, indicating a second recurrence of the tumour. We reviewed the literature discussing the clinical course of grade II EPM, and cases suffering multiple recurrences.