hypophyseal vein

A vein that is tributary of the cavernous sinus and drains blood from the pituitary gland.

Tipe Bone
Struktur Induk vein

Pertanyaan yang Sering Diajukan

What is a hypophyseal vein?
A hypophyseal vein is a small vein that drains blood from the pituitary gland (hypophysis) into the cavernous sinus. These veins are part of the venous drainage system of the sellar region and participate in the venous outflow of the pituitary.
Where are hypophyseal veins located?
Hypophyseal veins are located in and around the pituitary gland, which sits in the sella turcica of the sphenoid bone. They drain into the cavernous sinuses on either side, which are large venous sinuses situated lateral to the sella turcica.
What is the function of hypophyseal veins?
Hypophyseal veins drain deoxygenated blood from the pituitary gland into the cavernous sinus, contributing to the venous outflow of this endocrine gland. They are distinct from the hypophyseal portal vessels, which carry hormonal signals between the hypothalamus and the anterior pituitary.
What conditions may be associated with hypophyseal veins?
Hypophyseal veins are relevant in the vascular anatomy of the pituitary region, which is important in surgical approaches to the sella turcica and in the context of pituitary pathology. Changes in pituitary vasculature may be associated with certain pituitary conditions. Clinical evaluation is necessary for assessment.
How are hypophyseal veins examined?
Hypophyseal veins are generally too small to resolve individually on routine clinical imaging but may be assessed indirectly through MRI of the pituitary gland and cavernous sinuses. Detailed vascular assessment of the sellar region may involve MR or CT angiography. They are encountered during transsphenoidal pituitary surgery.

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.