Abnormal subclavian artery morphology

What it means

Any anomaly of a subclavian artery.

The left and right subclavian arteries supply blood to the posterior cerebral circulation, cerebellum, posterior neck, upper limbs and the superior and anterior chest wall. The right subclavian artery is a terminal branch of the brachiocephalic artery,and the left subclavian artery is the third branch of the aortic arch (following the left common carotid artery).

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category