Florida children in grades six through eight are required under current law to take one semester of physical education every year, but the state is now considering a bill to eliminate the requirement for that class.
Superior vena cava syndrome (SVCS) is obstruction of blood flow through the superior vena cava (SVC). It is a medical emergency and most often manifests in patients with a malignant disease process within the thorax. A patient with SVCS requires immediate diagnostic evaluation and therapy.
Cause. 1  Thrombosis of the superior vena cava caused by an indwelling central venous catheter which caused superior vena cava syndrome. 2  A CXR of a person with lung cancer which was causing superior vena cava syndrome. 3  A CT image showing compression of the right hilar structures by cancer.