left brachiocephalic vein


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Related to left brachiocephalic vein: vena brachiocephalica

left brachiocephalic vein

Etymology: ME, left, weak; Gk, brachys, short, kephale, head
a vessel about 6 cm long that starts in the root of the neck at the junction of the internal jugular and the subclavian veins on the left side and runs obliquely across the thorax to join the right brachiocephalic vein and form the superior vena cava. Also called left innominate vein. Compare right brachiocephalic vein.
References in periodicals archive ?
The thoracic duct drains into the distal portion of the left brachiocephalic vein.
Contrast enhancement chest CT, performed in the portal venous phase as our usual staging protocol, reveals that the left upper pulmonary vein presents an anomalous route: it first runs under the left pulmonary artery, then goes up medially to it, runs via the aortopulmonary window, and finally joins the left brachiocephalic vein, describing on the whole a curved line with superior concavity (Figures 1 and 3).
A portion of the left subclavian vein and probably the left brachiocephalic vein are also thrombosed.
The unilateral enlargement at initial presentation can be explained by the tumor and thrombus obstructing the flow from the right brachiocephalic vein to a greater degree than the left brachiocephalic vein.
Right and left superior intercostal veins have been traced to their points of termination into the right and left brachiocephalic veins, correspondingly the hemiazygos and the accessory hemiazygos are traced on the left side of the bodies of the thoracic vertebrae behind the descending thoracic aorta.
The most important vessels found in this region are the internal and external jugular veins, axillary vein, costocervical, deep cervical, vertebral, left brachiocephalic veins and the cranial vena cava, in addition to the left common carotid, axillary, costocervical trunk, dorsal scapular, deep cervical and superficial cervical arteries (POPESKO, 1997).