right superior intercostal vein

right su·pe·ri·or in·ter·cos·tal vein

[TA]
a tributary of the azygos vein formed by the union of the right second, third, and fourth posterior intercostal veins.
References in periodicals archive ?
The right superior intercostal vein drained the upper four right posterior intercostal veins into the AV in 30 % of cadavers.
The AV may have one or more origins, but usually drains the lower eight right posterior intercostal veins directly, as well as the right superior intercostal vein, which in turn drains the four upper right posteriorintercostal veins.
Along its course it receives the HV, AHV, mediastinal, pericardial, oesophageal, right bronchial and right superior intercostal veins (Drake et al.; Snell).