Your doctor may need to remove a small piece of an artery above and in front of your ear to determine if you have giant cell arteritis. Often the artery will be taken from the temple through a small incision. You will not need to be put to sleep to do this but you will receive medicine to numb the area. The piece of the artery then will be examined under a microscope. If you have giant cell arteritis the artery will be inflamed. A sed rate reading also can help determine the diagnosis because as in the case of PMR the sed rate is almost always higher than normal.
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