has part has part characteristic of inheres in has modifier Hypoplastic ventricle Hypoplastic left ventricle 2008-03-18T08:56:00Z HP:0004383 Underdeveloped left heart Heart left ventricle hypoplasia UMLS:C0152101 Left ventricular hypoplasia SNOMEDCT_US:62067003 A severe congenital heart defect characterized by underdevelopment of the left ventricle. This feature most often occurs as part of the Hypoplastic left heart syndrome (HLHS), which may comprise additional malfmorations atresia of the aortic or mitral orifice and hypoplasia of the ascending aorta. If present, the additional features should be coded with the corresponding HPO terms. Congenital malformation of the left heart abnormal hypoplastic heart anatomical entity