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 ?
The source of ACTH must be defined; the only way to do this is inferior petrosal sinus ACTH after corticotropin-releasing hormone stimulus.
Diagnostic errors aider inferior petrosal sinus sampling.
Petrosal sinus sampling with and without corticotropin-releasing hormone for the differential diagnosis of Cushing's syndrome.
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).
If the source of ACTH cannot be localized conclusively, bilateral inferior petrosal sinus sampling may be necessary.
Inferior petrosal sinus sampling (IPSS) was performed only in one patient and confirmed the diagnosis of CD.