<prompt> All are true about Abdominal aneurysm except:Atherosclerosis is the commonest causeMost commonly arises from above the level of renal aeryFor asymptomatic aneurysms, repair is indicated if the diameter is 5.5 cmEndovascular placement of an aoic stent is use for repair  <response>: Answer- B. Most commonly arises from above the level of renal aery90 of abdominal aoic aneurysm AAA of size 4cm in diameter is due to atherosclerosis.Male are more frequently affected than female.The aneurysm most commonly arises below the level of renal aery. 