Understanding the optic strut, anterior clinoid process, and adjacent anatomical structures is important for planning a neurosurgical approach to ophthalmic artery aneurysms and tumors involving the anterior cavernous sinus, medial sphenoid wing, and optic canal.

Aug 16, 2021 · The optic strut is a paired bony projection that joins the body of the sphenoid bone with the anterior clinoid process of the lesser wing of the sphenoid bone. It separates the optic canal superomedially from the superior orbital fissure inferolaterally 1 .

Feb 27, 2023 · The posterior root of the ACP is called optic strut (OS)—also known as the “optic pillar” or “sphenoid strut” (3, 4). The OS is an important landmark during the removal of the ACP (i.e., anterior clinoidectomy) and has been colloquially named the “Rosetta Stone” of the paraclinoid region ( 5 ).

Jan 3, 2024 · The sphenoid bone is one of the eight bones that make up the cranium – the superior aspect of the skull that encloses and protects the brain. Its name is derived from the Greek ‘sphenoeides’, to mean wedge-shaped.

The lateral optic–carotid recess is the optic strut impression on the sphenoid sinus bony surface. The pneumatization of the optic strut and/or ACP facilitates the identification of the ONs, optic canal and parasellar cavernous ICA during transsphenoidal surgery.

The anatomy, radiological appearance, and diagnostic importance of the optic strut are described and five cases presented to illustrate its value in the diagnosis of infraclinoid aneurysms, optic gliomas, and orbital deformities associated with neurofibromatosis.

Mar 3, 2016 · The anterior (superior) root is thin and flat, and the posterior (inferior) root, referred to as the sphenoid strut, is thick and rounded. The circular opening between the two roots is the optic canal. The greater wings arise from the sides of the body of the sphenoid bone and curve laterally, posteriorly, anteriorly, and superiorly. The ...

Dec 2, 2021 · Objective Anatomic variability of the optic strut in location, orientation, and dimensions is relevant in approaching ophthalmic artery aneurysms and tumors of the anterior cavernous sinus, medial sphenoid wing, and optic canal.

The optic strut, the term used by radiologists and neurosurgeons, or the posterior root of the sphenoid bone, as described in anatomy texts, receives only passing notice of its existence. Yet an incr...

The sphenoid sinus is the most deeply located sinus cavity in the sphenoid bone and it is surrounded by vital neuroencephalic structures. For this reason, clinical examination and endoscopic investigation of sphenoid sinus remains challenging and often contributes poorly to …