ABSTRACT
Introduction Superior vena cava syndrome (SVCS) is an array of symptoms caused by the obstruction of blood flow through the vena cava superior to the right atrium. The vena cava superior is formed by the union of right and left brachiocephalic veins and empties into the superior-posterior atrium. It is located in the middle of the mediastinum and is in close relationship with structures like the sternum, trachea, right bronchus, aorta, pulmonary artery and the paratracheal and perihilar nodes.
