Variations of Retromandibular Vein and Its Relation to Facial Nerve Within Parotid Gland.

Maxillary vein and superficial temporal vein unite to form the retromandibular vein in the parotid gland. The facial nerve lies lateral to external carotid artery and retromandibular vein. Identifying and preserving the facial nerve is the prime motto during parotidectomy. So the variations of facial nerve and the retromandibular vein should be known so as to avoid injury to both. The variations we encountered during parotid surgery will be helpful in avoiding unexpected bleeding and injury to facial nerve.