Dorsum sellae

Last revised by Yuranga Weerakkody on 28 Dec 2020

The dorsum sellae is the square shaped process of the sphenoid bone. It ascends superiorly from the posterior part of the sphenoid body to form the posterior wall of the sella turcica.

Gross anatomy


The dorsum sellae forms the posterior wall of the sella turcica, which houses the pituitary gland. Laterally, it articulates with the petrous apex of the petrous part of the temporal bone. Posteriorly, it articulates with the basilar part of the occipital bone, and jointly forms the clivus. The superior border bears the posterior clinoid processes.

Variant anatomy

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