abnormal aortic sinus morphology 2010-09-30T10:52:58Z MP:0010482 MPheno.ontology abnormal Petit sinus morphology abnormal Valsalva sinus morphology abnormal sinus of Valsalva morphology any structural anomaly of the spaces betwen the superior aspect of each of the three cusps of the aortic valve and the dilated portion of the wall of the ascending aorta, immediately above each cusp; the three sinuses include the posterior (non-coronary sinus), and the right and left aortic sinuses (from which the left and right coronary arteries arise) csmith abnormal aorta bulb morphology