petrosal sinus


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Related to petrosal sinus: cavernous sinus, Dural venous sinuses

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]

petrosal sinus

The superior or the inferior petrosal sinus.
See also: sinus
References in periodicals archive ?
Venous congestion leading to brainstem masses like lesions seem to be related to the involvement of the right superior petrosal vein, which is connected to the superior petrosal sinus superiorly and to the anterior spinal vein inferiorly.
Diagnostic errors aider inferior petrosal sinus sampling.
Petrosal sinus sampling with and without corticotropin-releasing hormone for the differential diagnosis of Cushing's syndrome.
Since the superficial petrosal sinus is also related to the region of the PCP, it is essential to have a previous good anatomical knowledge before exploring any of these structures i.
Assessing the value of bilateral inferior petrosal sinus sampling in the diagnosis and treatment of a complex case of Cushing's disease.
Angiography done before BIPSS showed hypoplastic right petrosal sinus with venous drainage from the right part of the pituitary draining to the left petrosal sinus (Figure 3).
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).
Routine inferior petrosal sinus sampling in the differential diagnosis of adrenocorticotropin (ACTH)-dependent Cushing's syndrome: early recognition of the occult ectopic ACTH syndrome.
Bilateral Inferior Petrosal Sinus Sampling in the Differential Diagnosis of Adrenocorticotropin-Dependent Cushing's Syndrome: A Comparison with Other Diagnostic Tests.