greater wing of sphenoid bone

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great·er wing of sphe·noid bone

(grā'tĕr wing sfē'noyd bōn)
Strong squamous processes extending in a broad superolateral curve from the body of the sphenoid bone. The greater wing presents these surfaces (facies): 1) cerebral surface forms anterior third of the floor of the lateral portion of the middle cranial fossa; 2) temporal surface forms the deepest portion of the temporal fossa; 3) infratemporal surface forms the "roof" of the infratemporal fossa; 4) orbital surface forms posterolateral wall of orbit. The greater wing forms the inferior border of the supraorbital fissure and is perforated at its root by the rotundum, ovale, and spinosum foramina and the pterygoid canal.
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36) The lateral sphenoid cephalocele can be further divided into type 1 (which herniates into a pneumatized lateral recess, may simulate a retention cyst on CT, and may present with CSF leak and headache) and type 2 (which herniates into or through the greater wing of the sphenoid bone and may present with seizure or headache).
Additional aspects of the mass were exposed and excised along the greater wing of the sphenoid.
In the second, not only was the Sonopet used in the orbital apex where vital soft tissue structures are in close proximity, but the lateral orbit and greater wing of the sphenoid were reshaped to both decompress the orbit and to restore the normal contour of the lateral orbit.
Case report: Anteromedial temporosphenoidal encephalocele with a clinically silent lateral bony defect in the greater wing of the sphenoid.
These recurrent lesions tended to involve the greater wing of the sphenoid bone.
The inframedial aspect of the right orbit and the greater wing of the sphenoid were also involved.
3,4) Rare case reports of cephaloceles through the tegmen of petrous temporal bone, the greater wing of the sphenoid and the centre of the basilar occipital bones have been described.
The most common abnormality of the skull includes macrocrania, hypoplasia of the greater wing of the sphenoid (harlequin appearance of the orbit) (Fig.
During the operation, large portions of time temporal bone (including the cochlea and the labyrinth) and the temporomandibular joint (including the articular disk, masseter, and medial pterygnid muscle), parts of the temporal muscle, the greater wing of the sphenoid, the adventitia of the internal carotid artery, the maxillary artery, the mandibular nerve, parts of the temporal dura, and a small part of the caudal temporal lobe had to be resected.
Garcia (3) reported one case and Leblanc et al (4) reported three in which a bony defect in the base of the greater wing of the sphenoid bone near the foramen rotundum allowed a meningoencephalocele to protrude into the pterygopalatine fossa.
High-resolution computed tomography (CT) of the skull base demonstrated a bony overgrowth, with sclerosis of the left temporal bone (particularly in the squamous portion and in the anterior part of the petrous pyramid) and the left greater wing of the sphenoid bone.

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