Table of Contents
Where is clinoid meningioma?
Clinoid meningiomas arise from the medial aspect of the sphenoid wing and grow superiorly from the clinoid region.
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 is the 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.
What is anterior clinoid process?
Introduction. 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.
What does the anterior clinoid process do?
The posterior border of small wing of sphenoid, smooth and rounded, is received into the lateral fissure of the brain; the medial end of this border forms the anterior clinoid process, which gives attachment to the tentorium cerebelli; it is sometimes joined to the middle clinoid process by a spicule of bone, and when …
How many clinoid processes are there?
clinoid process any of three processes of the sphenoid bone (anterior, medial, and posterior).
What is the anterior clinoid process?
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.
Should I worry about my meningioma?
Often, meningiomas cause no symptoms and require no immediate treatment. But the growth of benign meningiomas can cause serious problems. In some cases, such growth can be fatal. Meningiomas are the most common type of tumor that originates in the central nervous system.
What is the anterior clinoid process of the sphenoid?
Anterior clinoid process. In the sphenoid bone, the posterior border, smooth and rounded, is received into the lateral fissure of the brain; the medial end of this border forms the anterior clinoid process, which gives attachment to the tentorium cerebelli; it is sometimes joined to the middle clinoid process by a spicule of bone,…
How is the anterior clinoid process characterized on CT?
It is easy to characterize on CT. Asymmetrically underpneumatized anterior clinoid process contains normal marrow and surrounding cortical bone, and appears as high T1 iso-T2, non-enhancing structure. Completely pneumatized anterior clinoid process appears hypointense on all pulse sequences and may mimic the flow void of an aneurysm.
What is underpneumatized anterior clinoid process?
Asymmetrically underpneumatized anterior clinoid process contains normal marrow and surrounding cortical bone, and appears as high T1 iso-T2, non-enhancing structure. Completely pneumatized anterior clinoid process appears hypointense on all pulse sequences and may mimic the flow void of an aneurysm.
What is the anterior pituitary?
The anterior pituitary is the front lobe of your pituitary gland, which is a small, pea-sized gland located at the base of your brain below your hypothalamus. Your pituitary gland is a part of your endocrine system and controls the function of several other endocrine glands.