sella turcica


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Related to sella turcica: Perpendicular plate, Empty Sella Turcica

sella

 [sel´ah] (L.)
a saddle-shaped depression. adj., adj sel´lar.
empty sella see empty-sella syndrome.
sella tur´cica a depression on the upper surface of the sphenoid bone, lodging the pituitary gland.
Sella turcica in the superior aspect of the sphenoid bone. From Dorland's, 2000.

sel·la tur·'ci·ca

[TA]
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.

sel·la tur·ci·ca

(sel'ă tŭr'si-kă) [TA]
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.

sel·la tur·ci·ca

(sel'ă tŭr'si-kă) [TA]
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.
References in periodicals archive ?
The degree of pneumatization or sphenoid sinus types and its relation to sella turcica was best evaluated on the sagittal scans of MRI (Hamid et al., 2008; Sevinc et al.; Seddinghi et al., 2014).
(2, 5) However, the appearance of the sella turcica and the cerebral cisterns were normal.
Here, we discuss the anatomical variation of sphenoidal sinus septum and its attachments to the projection of the internal carotid artery, optic nerve projection, sella turcica or directly to the lateral wall of the sphenoid sinus.
Caption: FIGURE 3: MRI of sella turcica at admission (August 2014): heterogeneous enlargement with peripheral contrast enhancement.
Computed tomography (CT) and magnetic resonance imaging (MRI) revealed the presence of a soft-tissue-density mass with extension through the floor of the sella turcica, the sphenoid sinuses, cavernous sinuses, and suprasellar region (figure 1).
[1,2] Paraganglioma of CNS region has been seen in pineal region, petrous ridge and sella turcica.[3-5] Paraganglioma of spinal cord is uncommon lesion.
(4) Radiology abnormalities: bridging of sella turcica, hemivertebrae, and flame-shaped radiolucencies.
Dorsum sellae (DS): A square portion of bone on the body of the sphenoid posterior to the sella turcica or hypophysial fossa.
Case 2: An extremely enlarged pituitary mass was found above the sella turcica of a male budgerigar.
A Magnetic Resonance Imaging (MRI) of the brain and sella turcica revealed a thickened and enlarged pituitary stalk.
Additional findings associated with a chronic increase in intracranial pressure include macrocrania, splitting of the sutures, skull demineralisation and erosion or enlargement of the sella turcica.
Other common space-occupying effects of intracranial aneurysm include visual field deficits (contralateral homonymous hemianopia) in relation to compression of the optic tract, mental derangements if the aneurysm compresses the mammillary bodies, and pituitary insufficiency if the aneurysm grows into the sella turcica [5].