What is tuberculum sellae meningioma?

Tuberculum sellae meningiomas are a classic tumor of the anterior fossa that present in patients with gradual visual deterioration secondary to optic apparatus compression. If untreated, complete blindness can occur.

What is the tuberculum sellae?

The tuberculum sellae forms the anterior wall of the sella turcica, which houses the pituitary gland. It is an elongated ridge located immediately posterior to the chiasmatic groove, hence is related to the optic chiasm and anterior portions of the optic tracts.

Where is a tuberculum sellae meningioma?

Tuberculum sellae meningiomas (TSMs) arise from the tuberculum sellae, a bony structure along the midline skull base located just anterior and inferior to the optic chiasm. It is flanked by the optic chiasm and optic nerves, carotid arteries, the cavernous sinus, pituitary gland, and sphenoid sinus.

What is Pterional meningioma?

Abstract. Meningioma is characterized as an abnormal meningeal growth from the arachnoid-mater that is usually benign. It is among the most common primary intracranial neoplasms and can be found in 1%-2.3% of autopsies.

Where is clivus?

A bone at the base of the skull, near the spine. Tumors, such as chordomas and chondrosarcomas, may form on the clivus. Anatomy of the spine.

Can meningioma affect pituitary gland?

Suprasellar meningioma arises from the base of the skull near the pituitary gland and the optic nerve. Tumors in this area can cause visual problems and dysfunction of the pituitary gland.

What is a pterional craniotomy?

The pterional craniotomy is a unique approach that provides wide access to the skull base. It is named after the pterion, the junction point of 4 bones within the skull (frontal, temporal, greater wing of sphenoid, parietal) and is considered a fundamental tool in the armamentarium of the neurosurgeon.

Where is the Diaphragma Sella located?

the pituitary fossa
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.