Tuberculum sellae and sphenoid planum meningiomas usually compress the optic chiasm from below.
2.
The sella turcica is bound in front by the tuberculum sellae and behind by the dorsum sellae.
3.
Behind the chiasmatic groove is an elevation, the tuberculum sellae; and behind this is a deep depression, the saddle-shaped sella turcica ( Turkish seat ), the deepest part of which, the hypophyseal fossa, lodges the pituitary gland.
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