Several names: An abnormal enlargement of blood vessels could be one of several things-simple enlargement would be dilation. Ectasia is an enlargement without the characteristics of an aneurysm. An aneurysm can occur in both veins and arteries but it more common in arteries. This is an enlargement that sort of looks like a bubble. Of the three, aneurysm is the most significant.
Answered 1/30/2014
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Depends: Abnormal enlargement of an artery = Aneurysm Abnormal enlargement of a vein = Varix (varicose)
Answered 9/28/2016
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