The retromandibular vein, also known as the posterior facial vein, runs through the substance of the parotid gland.
Origin and course
The retromandibular vein is formed, usually within the parotid, by the confluence of the maxillary vein and the superficial temporal vein. It lies deep to the facial nerve and superficial to the external carotid artery.
The retromandibular vein divides into two branches: