aorta hypoplasia aorta tubular hypoplasia 2010-10-04T09:28:50Z Hypoplasia in the term name is not necessarily consistent with usage in the rest of the ontology (underdevelopment vs narrowing of the lumen), but this is the term name used by cardiologists. MP:0010543 MPheno.ontology a diffuse narrowing of the lumen of the aorta aortic tubular hypoplasia csmith narrow aorta lumen narrow aortic lumen