Internal jugular vein anomaly : a lateral branch of the internal jugular vein in the neck

الملخص EN

There is not any detailed investigation about the jugular vein (JV) anomalies.

We can see only case reports in the English literature.

Duplication, fenestration are rarely seen anomalies of the internal jugular vein (IJV).

The IJV has no lateral branch in the neck.

It has only medial branches in the neck.

We performed total laryngectomy and bilateral selective neck dissection in a 63-year-old man who has T2N0M0 supraglottic squamous cell carcinoma of the larynx.

During the dissection of the right neck we found right IJV ectasia and a lateral branch at the lower level.

Lateral branch of the IJV is the second JV anomaly which we met in our cases.

It is important to know there can be a anomaly like this during the neck operations.