The retromandibular vein runs through the substance of the parotid gland. It lies deep to the facial nerve and superficial to the external carotid artery. The retromandibular vein is formed, usually within the parotid, by the confluence of the maxillary vein and the superficial temporal vein.
The retromandibular vein divides into two branches:
- anterior: joins the facial vein
- posterior: joins the posterior auricular vein, forming the external jugular vein