A Morphological Study of the Dorsum Sellae in Human Skull.

Tweet about this on TwitterShare on FacebookEmail this to someoneShare on Google+

Syed Javed Haider; Assad Ali Rezigalla & Asim Mohammed Abdalla


Anatomical variations in the shape and dimension of the dorsum sellae and posterior clinoid process are common. Most textbooks describe its shape as a median rectangular plate, a square plate, or a transverse ledge on a slope behind the sella turcica (hypophyseal fossa). This work aims to study the dorsum sellae of human skull. One hundred and twenty five dried adult human skulls, irrespective of age, were used for the study. Detailed features of the dorsum sellae were noted and classified into five types: crest like, thin plate, frail quadrilateral plate, heavy square plate, thick elongated plate. Fusion of the posterior and middle clinoid processes in one (unilateral) and all the clinoid processes (anterior, middle, and posterior) in three skulls (unilateral in one, bilateral in two) were also noticed. Findings are discussed in the light of the literature.

KEY WORDS: Dorsum sellae; Clinoid process; Anatomical variations; Skull.

How to cite this article

HAIDER, S. J.; REZIGALLA, A. A. & ABDALLA, A. M. A morphological study of the dorsum sellae in human skull. Int. J. Morphol., 34(4):1187-1190, 2016.