This is a test to look at blood vessels. The bile duct is very close to large blood vessels that carry blood to and from the liver. An angiogram may be used to check whether any of them are affected by the cancer.

Angiograms are carried out within the x-ray department. A fine tube is put into an artery in the groin and a dye is then injected into this tube. The dye circulates in the arteries so that they show up on x-ray.

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