abnormal ascending aorta morphology 2009-12-15T10:41:11Z Fyler:1431 MA:0002570 MP:0009867 MPheno.ontology abnormal aorta ascendens abnormal pars ascendens aortae any structural anomaly of the portion of the aorta that arises from the base of the left ventricle and extends upward to the aortic arch and from which the coronary arteries arise csmith abnormal thoracic aorta morphology