Transient cerebral arteriopathy is non-progressive and unilateral involvement of arteries especially supra
clinoid portion of internal carotid artery and its proximal branches11.
In the parasellar region, Anterior
Clinoid Process (ACP) with its supporting structures like Optic Strut (OS), medial part of lesser wing of the sphenoid and roof of the optic canal are certain bony landmarks related to important elements like the cavernous sinus, Internal Carotid Artery (ICA), Optic Nerve (ON) and the pituitary gland.
CT scan revealed linear un-displaced fracture of right frontal bone extending up to the roof and right ethmoid sinus, anterior
clinoid process and lateral pterygoid plate, fracture of medial and lateral wall of the right orbit, and fracture of right ramus of the mandible.
The lesion was causing thinning and pressure erosion of the posterior wall of maxillary sinus, pterygoid plate, posterior wall of orbit, medial wall of sphenoid on the left side, left lesser wing of sphenoid, and was causing thinning of left anterior
clinoid process.
McDermott, "Mucocele involving the anterior
clinoid process: MR and CT findings," American Journal of Neuroradiology, vol.
Furthermore, V4 travels along the lateral and superior side walls of sphenoid sinus in a posterior-to-anterosuperior direction and exits medial to the anterior
clinoid process to become intradural segment [9,29].
Pneumatization of anterior
clinoid process was there in 2 (4%) patients; all unilateral.
A micro-grinding drill measured to be 8–10 cm long and 0.3 cm in distal diameter is more suitable for the removal of the anterior and posterior
clinoid processes, opening the back of the internal auditory canal and other deep bone removal operations through the keyhole approach.
The sella turcica in the sphenoid bone consists of a central hypophysial fossa and two pair of
clinoid processes (anterior and posterior).
For example, the signal void caused by a pneumatized anterior
clinoid process may mimic an internal carotid artery aneurysm due to juxtaposition with the supraclinoid internal carotid artery.