abnormal aortic valve morphology abnormal aortic valve anulus morphology 2010-10-06T09:45:59Z MP:0010598 MPheno.ontology abnormal aortic anulus morphology abnormal aortic valvar anulus morphology abnormal fibrous ring of aortic valve any structural anomaly of the fibrous ring of the aortic valve that attaches the cusps of aortic valve to the wall of left ventricle, and which consists of portions of the fibrous scallops of the posterior, right anterior and left anterior cusps csmith