abnormal descending thoracic aorta morphology 2009-12-15T10:44:36Z MPheno.ontology any structural anomaly of the part of the aorta that extends from the arch of the aorta to the diaphragm, and from which arises numerous branches that supply oxygenated blood to the chest cage and the organs within the chest MP:0009868 csmith MA:0002572 abnormal descending aorta morphology abnormal thoracic aorta morphology