K H FUNG / SCIENCE PHOTO LIBRARY K H FUNG / SCIENCE PHOTO LIBRARY
Arteriovenous fistula of the scalp. Digitally enhanced 3D computed tomography (CT) scan of an arteriovenous fistula on a patient scalp. An arteriovenous fistula (or arteriovenous shunt) is an abnormal connection between an artery and a vein. This condition may be congenital, or due to trauma or other conditions such as an aneurysm.
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