Duplication of the internal jugular vein: a rare presentation during neck dissection.

The anatomical variations of the internal jugular vein (IJV) is a well-documented phenomenon which may depend on the course of drainage, fenestration in the vein, bifid formation, variations in the tributaries and so on. However, a true duplication of the IJV is a rare entity on its own and is seldom reported in the literature. We report a case of true duplication of IJV which is an incidental discovery during the course of neck dissection.