Optic strut connects the body of sphenoid to the inferomedial aspect of base of anterior clinoid process
and is removed during anterior clinoidectomy and optic canal decompression.
In the supraobital or pterional keyhole approaches, cavernous sinus tumor can be dissected by removing the anterior clinoid process
or cut open the cavernous sinus along the oculomotor nerve.
The anterior clinoid process
is a part of the roof to the cavernous sinus in its frontal portion.
Its posterior border is marked by the petroclinoidal (petrosphenoidal or Gruber's) ligament extending between the petrous apex and posterior clinoid process
of the sphenoid.
The anterior edge of the pituitary fossa is completed laterally by the middle clinoid process
and the posterior boundary is formed by the dorsum sellae, the superolateral angles of which are expanded to form the posterior clinoid process
The oculomotor nerve pierces the dura lateral to the posterior clinoid process
and traverses the cavernous sinus, before dividing.
The tumor also extended posteriorly along the base of the cranial vault, destroying the pterygoid plates inferiorly and the clinoid process
A spinner dolphin, Stenella longirostris, from the Gulf of Mexico has both an anterior and a posterior clinoid process
bordering its sella turcica.
The relationship between the sixth nerve, Gruber's ligament, the carotid artery and the anterior clinoid process
, is necessary to understand the three dimensional structure of the canal.
Gruber described the ligament extending from the apex of the petrous temporal and sphenoid posterior clinoid process
and gave the name petrosphenoidal ligament (Marom; Ambekar et al., 2012).
*Type II (standard FLA): A Type II FLA was performed for lesions that invaded the anterior clinoid process
, cavernous sinus, and the third ventricle.