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sella turcica


Definition: a saddlelike bony prominence on the upper surface of the body of the sphenoid bone, constituting the middle part of the butterfly-shaped middle cranial fossa; it includes the tuberculum sellae anteriorly and the dorsum sellae posteriorly; with its covering of dura mater it constitutes the hypophysial fossa that accommodates the hypophysis or pituitary gland.

Synonym(s): pars sellaris, Turkish saddle

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.