Artery bypass surgery, angiogram. Back view of the thighs of a 67 year old patient who has had two bypass operations (grafts, black) to treat arteriti
Artery bypass surgery, angiogram. Back view of the thighs of a 67 year old patient who has had two bypass operations (grafts, black) to treat arteritis. Arteritis is a disease where the walls of arteries become inflamed, usually as a result of infection or auto-immune response. Severe stenoses (restrictions) in the arteries means there is limited blood flow in the leg, and this can result in necrosis (tissue death) or gangrene. Bypass operations allow blow flow to return to the lower limbs. An angiogram is an X-ray technique that uses a contrast dye to highlight blood vessels.
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Photo credit: © ZEPHYR/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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