Erosion Sellar Floor

Erosion or destruction of the sella turcica can arise with any of numerous intracranial tumors including.

Erosion sellar floor.

Another measurement important in transsphenoidal surgery is the thickness of the anterior sellar wall and sellar floor. In patients with a known pituitary microadenoma erosion or remodelling of the pituitary floor is a sign of inferior extension. Erosion of anterior and posterior clinoids can be seen pituitary tumors e g. In the sellar type of sinus the thickness of the anterior sellar wall ranged from 0 1 to 0 7 mm mean 0 4 mm compared with 0 3 to 1 5 mm mean 0 7 mm for the presellar type.

Primary or secondary neoplasms including. Mucocele of the sphenoid sinus. Chordoma of the clivus is frequently associated with erosion of the dorsum sellae and the sellar floor. Thickening of the tuberculum or of the clinoid processes and blistering of the planum sphenoidale have frequently been reported in association with meningiomas of the sella turcica.

Gliomas of the optic nerve and hypothalamus may erode the clinoid processes. Erosion or remodelling of the pituitary floor is of limited help since it may be a normal finding.