abnormal aorta morphology Fyler:1453 MA:0000062 MP:0000272 MPheno.ontology abnormal aortae morphology any structural anomaly of the main trunk of the systemic arterial system that originates from the base of the left ventricle of the heart and extends to the abdomen at the point where it branches into the common iliac arteries aorta abnormalities aorta dysplasia abnormal systemic artery morphology