SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Arteritis in the groin. Coloured X-ray of the iliac and femoral arteries in a patient with arteritis (inflammation of the arteries). This frontal view shows the bladder (centre, orange). Either side of it are the two iliac arteries (orange) of the groin, which originate from the abdominal aorta. The iliac arteries continue into the thighs, where they become the femoral arteries. Smaller arteries branch off from these major arteries. A contrast medium has been injected into the blood to highlight the blood vessels, a technique known as angiography. The catheter used to inject the contrast medium is seen here, running from lower right across the image and into the artery at left.
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