Assertion: abdominal aortic aneurysm | /r/HasSubevent | abnormal widening
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text: An abdominal aortic aneurysm, also called AAA or triple A, is a bulging, weakened area in the wall of the aorta (the largest artery in the body), resulting in an abnormal widening or ballooning greater than 50 percent of the normal diameter (width).