It drains all the posterior intervertebral veins except those of the first 3 thoracic segments. The azygos vein normally measures up to 1.5 cm. in diameter.

The radiographic appearance of the azygos-vein arch adjacent to the right tracheobronchial angle in the frontal view is well known. 3,5–7 Its change in appearance with position, respiration and ...

As for gastroesophageal varices type 1, the afferent vein of the GV mainly originated from the LGV and the efferent veins were mainly via the azygos vein to the super vena cava.

In 2011, members of a Society of Interventional Radiology Foundation's Research Consensus Panel noted that evaluating people with multiple sclerosis who have narrowed jugular and azygos veins ...

The theory that endovascular treatment of 1 or both of the internal jugular veins and sometimes the azygos veins, located in the thoracic vertebral column, may help alleviate MS arose from studies ...

Evaluating patients with multiple sclerosis who have narrowed jugular and azygos veins -- and the value of widening those veins with angioplasty -- warrants careful, well-designed research, noted ...

FAIRFAX, Va.—Evaluating patients with multiple sclerosis who have narrowed jugular and azygos veins—and the value of widening those veins with angioplasty—warrants careful, well-designed ...