What is Pneumatization of the anterior Clinoid process?
Pneumatized anterior clinoid process (ACP) is a common incidental finding seen on cross-sectional imaging and intraoperatively. The sphenoid sinus varies in the extent of aeration along the sphenoid bone. Pneumatization begins in childhood and ends in adolescence.
What is anterior Clinoid process?
The anterior clinoid process (ACP) is a bony structure on the superolateral aspect of the sphenoid sinus lying between the internal carotid artery and the optic nerve. Blockage of the drainage of a paranasal sinus for any reason can result in accumulation of trapped secretions and result in a mucocele.
Where is the anterior Clinoid process located?
Background: The anterior clinoid process (ACP) is located close to the optic nerve, internal carotid artery, ophthalmic artery, and can be easily injured in an ACP-related surgery. An anatomical study clearly defining the ACP is of great importance.
What is posterior Clinoid process?
The posterior boundary of the pituitary fossa is formed by the dorsum sellae, the supero-lateral angles of which are raised to form the posterior clinoid process. The posterior clinoid process anomalies may be responsible for the altered arrangement of the tentorium cerebelli which is attached to it.
What is the sphenoid sinus?
(SFEE-noyd SY-nus) A type of paranasal sinus (a hollow space in the bones around the nose). There are two large sphenoid sinuses in the sphenoid bone, which is behind the nose between the eyes. The sphenoid sinuses are lined with cells that make mucus to keep the nose from drying out.
What is Clinoidal meningioma?
Clinoidal meningiomas (CM) are benign tumors arising from the meningeal covering of the anterior clinoid process (ACP). These tumors have been referred to by various other terms, such as medial or inner sphenoid wing meningiomas.
What is the Tuberculum Sellae?
The tuberculum sellae is the ridged process of the sphenoid bone which forms the anterior wall of the sella turcica.
What is clivus?
Listen to pronunciation. (KLY-vus) A bone at the base of the skull, near the spine. Tumors, such as chordomas and chondrosarcomas, may form on the clivus.
What is the Diaphragma Sellae?
The diaphragma sellae is a sheet of dura mater that forms the roof of the pituitary fossa. It is described as a two-layer sheet of dura mater that merges anteriorly with the dura covering the planum sphenoidale and the anterior cranial fossa and posteriorly with the dura covering the dorsum sellae and the clivus.