Venous Anatomy and Variants

Published on 13/02/2015 by admin

Filed under Cardiothoracic Surgery

Last modified 13/02/2015

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Venous Anatomy and Variants

Venous Axial 1

Normal Variant

An axial volume rendered image of the thorax showing the normal left superior intercostal vein coursing along the lateral aspect of the aortic arch, emptying into the left brachiocephalic vein. The left superior intercostal vein typically drains the 2nd, 3rd, and 4th intercostal veins on the left, and connects the left brachiocephalic and accessory hemiazygos veins. The left superior intercostal vein provides a collateral pathway for blood flow from the upper extremities and trunk to the heart in the setting of venous stenosis or obstruction.

Venous Axial 2

Normal Variant

This scan, performed at the caudal surface of the aortic arch, shows a common venous anomaly affecting the thorax—the persistent left superior vena cava

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