What does anterior clinoid process mean?
[TA] the posteriorly directed projection that is the medial end of the sphenoidal ridge (lesser wing of sphenoid); it provides attachment for the free edge of the tentorium cerebelli. Synonym(s): processus clinoideus anterior [TA]
What does Clinoid mean?
[ klī′noid′ ] n. Any of three pairs of bony projections, designated anterior, middle, and superior, from the sphenoid bone.
What is clinoid 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 attaches to posterior clinoid process?
Anatomical Parts The posterior clinoid processes deepen the sella turcica, and give attachment to the tentorium cerebelli.
Where is posterior Clinoid process?
The anterior, middle and the posterior clinoid processes are located in the middle cranial fossa of the skull. 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.
What is Clinoid meningioma?
What attaches to posterior Clinoid process?
Can benign inflammatory mucoceles develop at the anterior clinoid process?
The developmental and anatomic features, as well as the diagnostic pitfalls, are discussed. The anterior clinoid process may be pneumatized by paranasal air spaces as part of normal development. We present two patients in whom benign inflammatory mucoceles developed at this unusual site.
What is the pathophysiology of a mucocele?
A mucocele is a chronic, expansile process that is completely filled with mucoid secretions and lined by respiratory epithelium. Mucoceles most commonly occur in the frontal and anterior ethmoidal sinuses consequent to obstruction of the small ostia by chronic inflammatory disease.
Can the anterior clinoid process be pneumatized by paranasal air spaces?
The anterior clinoid process may be pneumatized by paranasal air spaces as part of normal development. We present two patients in whom benign inflammatory mucoceles developed at this unusual site.
How are orbital apex and anterior clinoid process aerated?
The bones forming the orbital apex and anterior clinoid process are often aerated either by an Onodi cell or a lateral recess of the sphenoidal sinus. These may in turn become obstructed, leading to expansile mucoceles. It is important to understand these developmental variants, particularly if a mass is detected in these positions.