<prompt> Regarding abdominal eneurysm, all are true exceptMore common in malesTransverse diameter of aorta in an aneurysm should be 3cm or moreSplenic artery aneurysm is most commonCommon in smokers  <response>: Abdominal aortic aneurysm is the most common abdominal aneurysm. splenic artery aneurysm is 2nd most common. 