Related Experiment Video
Updated: Mar 21, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
Abstract:
Superior vena cava syndrome is a complex of symptoms developing as a result of disordered circulation in the superior vena cava system and impaired venous blood outflow from the upper part of the body. The classical signs of superior vena cava syndrome are cyanosis, swelling of the head, upper limbs and upper chest, dilatation of subcutaneous veins, apnea, hoarseness, cough, etc. Diagnostics of superior vena cava syndrome is based on chest X-ray and CT Superior vena cava syndrome is a rare condition and therefore usually unrecognized during the first examination of the patient.
Related Concept Videos
Overview of Systemic Veins
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Overview of Systemic Arteries
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the...
Veins of the Abdomen and Pelvis
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
Venous Thrombosis I: Introduction
Veins of Thorax
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...

