anuloaortic ectasia

an·u·lo·a·or·tic ec·ta·si·a

(an'yŭ-lō-ā-ōr'tik ek-tā'zē-ă) Supravalvular dilation of the aorta involving both its wall and the valve ring, whose diameter however, remains smaller than that of the more distal ectatic wall; many cases are related to Marfan syndrome.