“…This blockage of blood flow may be partial or complete and results in venous congestion in the upper body, causing swelling of the face, neck, and upper extremity, difficulty breathing, cough, and dilated collateral veins in the chest [1][2][3]. Swelling of the tissues of the face and neck can be severe enough to cause airway compression and oropharyngeal obstruction [3,4]. SVC obstruction most commonly occurs as a result of compression from a nearby mass, such as mediastinal malignancies, as the vessel is thin-walled and easily flattened [3].…”