Intravenous literature: Ellis, H. (2012) Anatomy of the superior mediastinum. Anaesthesia & Intensive Care Medicine. 13(8), p.358-359.
The superior mediastinum is the region sandwiched between the pleural sac on each side above an imaginary line from the angle of Louis in front to the fourth/fifth thoracic intervertebral disc behind. Its important contents are the oesophagus, trachea, great veins, aortic arch and its branches, the vagus, phrenic and left recurrent laryngeal nerves, the upper part of the thoracic duct and the thymus gland.