Sella Turcica Of The Sphenoid, Superior View

Description

Sella turcica occupies the midline of the sphenoid body as a saddle-shaped depression, bordered anteriorly by the tuberculum sellae and posteriorly by the dorsum sellae. Anterior clinoid processes project posteromedially from the lesser wings, while the posterior clinoid processes rise from the superior angles of the dorsum, framing the pituitary fossa between them. From this superior perspective, the hypophyseal fossa sits centrally, with the planum sphenoidale and chiasmatic sulcus anterior and the clivus beginning just posterior to the dorsum sellae. Bony margins read cleanly. For endocrinology and neurosurgery, this region matters because the pituitary gland rests within the hypophyseal fossa and enlarging pituitary adenomas remodel the sellar floor and clinoid contours, with proximity to the optic chiasm across the chiasmatic sulcus. The clinoid processes define attachment points for the tentorium cerebelli and bracket the parasellar corridor where the cavernous sinus and internal carotid artery course laterally, relationships that underlie the risk profile of transsphenoidal and parasellar approaches. A top-down bony view makes the sellar boundaries and landmarks used in skull base orientation easy to reference without distraction from overlying soft tissues. Use this illustration in head and neck anatomy teaching, neuroanatomy modules covering the hypophysis and optic pathway, and in neurosurgical or ENT publications discussing transsphenoidal access, clinoidectomy, or sellar and parasellar pathology. It also suits radiology education when correlating midline skull base landmarks with CT bone windows and MRI sellar protocols. Anatomical accuracy verified by SciePro's Medical Advisory Board.