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Empty sella syndrome is the condition when the pituitary gland shrinks or becomes flattened, filling the sella turcica with cerebrospinal fluid instead of the normal pituitary. [2] It can be discovered as part of the diagnostic workup of pituitary disorders, or as an incidental finding when imaging the brain.
Empty sella in MR imaging. The empty sella sign is a radiological finding characterized by the partial or complete filling of the sella turcica with cerebrospinal fluid (CSF), causing the pituitary gland to appear flattened or compressed against the walls of the sella. [1] This results in the sella appearing "empty" on imaging, despite the ...
Empty sella turcica; Varying features. Bones. Sesamoid bone of the second, third, fourth and fifth finger; Manubriosternal fusion; Sternoxiphoidal fusion; Muscles
The sella turcica is located in the sphenoid bone behind the chiasmatic groove and the tuberculum sellae.It belongs to the middle cranial fossa. [1]The sella turcica's most inferior portion is known as the hypophyseal fossa (the "seat of the saddle"), and contains the pituitary gland (hypophysis).
[14] [5] Some possible predisposing factors to Sheehan's syndrome may include: disseminated blood coagulation (DIC), hypotension, small sella turcica size, and blood clots from a pre-existing hypercoagulable disorder. [9] Atony of the uterus is a leading cause of post-partum hemorrhage, therefore uterine atony could induce Sheehan's syndrome. [15]
sella (that is, sella turcica) S: Midpoint of sella turcica: sphenoethmoidal suture: SE: the cranial suture between the sphenoid bone and the ethmoid bone: sella–nasion line: SN or S–N: Line from sella to nasion: sella–nasion–A point angle: SNA or S-N-A: Average of 82 degrees with +/- of 2 degrees sella–nasion–B point angle: SNB or ...
A fracture through the sella can lead to profuse blood aspiration. A common mechanism for transverse fractures is a sharp blow to the chin, such as a fall onto a hard surface. The impact energy transfers to the skull base via the mandibular rami and temporomandibular joints. The chin injury may appear minor, often just a small abrasion or ...
The tuberculum sellae (or the tubercle of the sella turcica) is a slight [1] median elevation upon the superior aspect of the body of sphenoid bone (that forms the floor of the middle cranial fossa [2]: 508-509 ) at the anterior boundary of the sella turcica (hypophyseal (pituitary) fossa) [2]: 509 and posterior boundary of the chiasmatic groove.