Superior vena cava syndrome
Superior Vena Cava Syndrome I. What every physician needs to know. Superior vena cava syndrome (SVCS) is defined by the obstruction of blood flow through the superior vena cava (SVC) as a result of intraluminal thrombus, invasion and/or external compression. Pathologic processes that can cause SVCS involve the lung, regional lymph nodes and other mediastinal…