Within the superior mediastinum, the following structures are anterior and to the right of the arch of the aorta:
- right and left brachiocephalic veins, joining to form the
- superior vena cava
- internal thoracic artery
- thymus gland
- right phrenic nerve
Superiorly, these structures lie in relation to the slightly deeper common carotid trunk as it splits into the right common carotid artery and the right subclavian artery.