accessory hemiazygos vein accessory hemiazygous vein vena hemiazygos accessoria
accessory_hemiazygos_vein%1:08:00:: accessory_hemiazygous_vein%1:08:00:: vena_hemiazygos_accessoria%1:08:00::
a vein formed by the union of the 4th to 7th posterior intercostal veins; empties into the azygos vein