Mediastinum
The mediastinum is a broad central compartment of the chest cavity that separates the two laterally placed pleural cavities and is enclosed on each side by the mediastinal pleura. The mediastinum contains all of the thoracic viscera and structures except for the lungs. It also serves as a pathway for the esophagus, thoracic duct, and several components of the nervous system, allowing them to traverse through the thorax on their way to the abdomen.
Some of the diseases of the mediastinum that we treat include myasthenia gravis masses in the anterior mediastinum and posterior mediastinum and enlarged lymph nodes around the airway