inferior petrosal sinus


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Related to inferior petrosal sinus: cavernous sinus

in·fe·ri·or pe·tro·sal si·nus

[TA]
a paired dural venous sinus running in the groove on the petrooccipital fissure connecting the cavernous sinus with the superior bulb of the internal jugular vein.
Synonym(s): sinus petrosus inferior [TA]

inferior petrosal sinus

A dural sinus that drains the cavernous sinus posteriorly into the superior jugular bulb of the internal jugular vein.
See also: sinus

Englisch,

Josef, Austrian physician, 1835-1915.
Englisch sinus - a paired dural venous sinus running in the groove on the petrooccipital fissure connecting the cavernous sinus with the superior bulb of the internal jugular vein. Synonym(s): inferior petrosal sinus
References in periodicals archive ?
The majority of venous effluent from each side of the pituitary gland drains into the ipsilateral inferior petrosal sinus.
Threshold criteria for pituitary source is defined as an inferior petrosal sinus to peripheral (IPS:P) basal ratio of 2:1 or greater without CRH or an IPS:P ratio 3:1 or greater after the administration of CRH (3,6,12).
The presence of a unilateral hypoplastic or plexiform inferior petrosal sinus may result in false-negative results regarding the central-to-peripheral ACTH gradient, and it also leads to misleading values in side-to-side gradients.
Adrenocorticotropic hormone-dependent Cushing's syndrome: sensitivity and specificity of inferior petrosal sinus sampling.
Pitfalls in the use of inferior petrosal sinus sampling for the differantial diagnosis of ACTH-dependent Cushing's syndrome.
Venous angiography is needed to interpret inferior petrosal sinus and cavernous sinus sampling data for lateralizing adrenocorticotropin-secreting adenomas.

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