Tuberculum sellae

The tuberculum sellae (or the tubercle of the sella turcica) is a slight median elevation upon the superior aspect of the body of sphenoid bone (that forms the floor of the middle cranial fossa ) at the anterior boundary of the sella turcica (hypophyseal (pituitary) fossa)  and posterior boundary of the chiasmatic groove.   A middle clinoid process flanks the tuberculum sellae on either side.