The vena cava is a large vein that collects blood from either the upper or lower half of your body. It receives blood from several smaller veins. This is blood with the oxygen removed that the vena ...

Thoracic outlet syndrome (TOS) is a group of conditions that occur when you have compressed nerves or blood vessels in the thoracic outlet. The thoracic outlet is the triangular space between your ...

Blood clots can develop in veins or arteries, disrupting blood flow and potentially leading to serious conditions. Symptoms of a blood clot vary depending on the location, but may include pain, ...

If nonsurgical treatments do not relieve a person’s thoracic outlet syndrome symptoms, a doctor may suggest surgery to relieve compression in the thoracic outlet. Surgery may include a first rib ...