There are two types of stenosis. One is in an artery and the second is in the vertebral canal. The term focal means that this narrowing is not large or lengthy. If it is in the vertebral canal, there can be no symptoms at all or mild ones. If in the artery, there's more concern because this narrowing can cause lack of oxygen and nutrients to get to the area the artery is going. There is surgical treatment for both.
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diagnosis code iliac stenosis
Treatment for renal artery stenosis is either surgical, pharmaceutical, or with angioplasty or stenting.
It does not. For an explanation of "focal plane" see the question What is the focal plane?
The cause of carotid stenosis is the buildup of plaque on the inner wall of the carotid artery. The reduced blood flow to the brain and the blockage of other arteries following the release of emboli can cause a stroke.
Yes