There was no venous pulsation in the neck, indicating the likely occlusion of the jugular veins. These signs were consistent with superior vena cava (SVC) syndrome. Precordial examination was ...

It is the lower, or inferior, part of the vena cava—a large vein also made up of the superior vena cava that carries blood from the head, neck, arms, and chest in the upper body to the heart.