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Condylar Emissary Vein (Right)
Cardiovascular System

Condylar Emissary Vein (Right)

Emissarium condylare

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The posterior condylar emissary vein usually arises from the posterior vertebral venous plexus (part of the suboccipital venous plexus in the posterior neck region).


The posterior condylar emissary vein passes through the posterior condylar fossa to enter the cranial cavity. This condylar fossa is the largest emissary foramen in the retromastoid region of the base of the skull. Inside the cranial cavity, the emissary vein drains into the sigmoid sinus. It could also invariably drain into the marginal or occipital sinuses.


There are usually no tributaries; however, it has been reported that the posterior condylar emissary vein joins the hypoglossal plexus (3.84%) or with internal jugular vein (3.84%) below the jugular foramen (Tubbs, Shoja and Loukas, 2016).

Structures Drained

Venous blood from the posterior scalp region is drained via the posterior condylar emissary vein and is delivered to the sigmoid sinus. However, one must be aware of the fact that emissary veins are valveless channels and hence, the blood can flow in either direction.


Tubbs, R. S., Shoja, M. M. and Loukas, M. (2016) Bergman's Comprehensive Encyclopedia of Human Anatomic Variation. Wiley.

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