Aneurysm
An aneurysm occurs when part of an artery wall weakens, allowing it to widen abnormally or balloon out.
The causes of aneurysms are sometimes unknown. Some may be congenital, meaning a person is born with them. An aneurysm may also occur as the result of aortic disease or an injury.
A family history of aneurysm may increase your risks of developing an aneurysm. Other risk factors include high blood pressure, high cholesterol and smoking.
Definition: American Heart Association
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