emissarium

(redirected from emissary vein)
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Related to emissary vein: mastoid emissary vein
See: outlet
References in periodicals archive ?
CTA is noninvasive, and it demonstrates relationships between temporal bone and adjacent vessels, so it is of great value in detecting anomalies of the sigmoid sinus, jugular bulb, and internal carotid artery, such as SSD, SSWD, high-riding jugular bulb, dehiscent jugular bulb, mastoid emissary vein, and aberrant internal carotid artery.
The emissary vein and other structures are separated by a layer of dense connective tissue which may occasionally be ossified to result in the duplication of the foramen ovale.
The infection may spread from the face via the facial venous plexus, which connects to the valveless emissary veins into the cranium.