Stent in subclavian artery. Frontal coloured angiogram of a stent in the left subclavian artery of a 58-year-old patient. The patient's left shoulder is seen at right and the spine can be seen running down the left. The stent is seen in the red region at centre. It is an expandable wire mesh used to treat stenosis (narrowing) of the artery, a condition caused by atheroma (fatty deposits on the inner wall). Treatment is usually by a surgical procedure known as an angioplasty, where the stent is inserted into the narrowed artery by a catheter (pale line seen running from right edge to centre bottom) and expanded to reopen the artery and regain normal blood flow.
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