Erosion Sellar Floor

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

Erosion sellar floor.

Focal erosion of the lateral margins secondary to an aneurysm focal erosions of the floor by pituitary lesions and selective erosion of the posteroinferior floor secondary to chronic increased intracranial pressure 3 4 are some of the more dependable findings. In patients with a known pituitary microadenoma erosion or remodelling of the pituitary floor is a sign of inferior extension. Mucocele of the sphenoid sinus. Enlargement with erosion of anterior cortex of dorsum sellae proceeds to the floor of the sella and may result in complete destruction of the dorsum.

Primary or secondary neoplasms including. 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. Erosion of anterior and posterior clinoids can be seen pituitary tumors e g. Furthermore osteolysis of the dorsum sellae and clinoids sometimes occur in childhood leukemia and langerhans cell histiocyto.

Erosion or remodelling of the pituitary floor is of limited help since it may be a normal finding. Chordoma of the clivus is frequently associated with erosion of the dorsum sellae and the sellar floor.