Case of the Month October 2014, page 3


In cases of common carotid occlusion, heavy collateralization through the ECA can maintain forward flow within the ICA.
The term “subclavian steal” describes a similar phenomenon by which the vertebral artery flows in a retrograde fashion due to proximal subclavian artery occlusion.

For a larger image, please click on Doppler Ultrasound 5 .


A) Atherosclerotic plaque
    B) Aortic coarctation
    C) Aortic Aneurysm
    D) Arteritis
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