Mondo Description Ebstein's malformation is a rare congenital cardiac anomaly characterized by rotational displacement of the septal and inferior leaflets of the tricuspid valve such that they are hinged within the right ventricle, rather than as expected at the atrioventricular junction.
Disease Ontology Description A tricuspid valve disease that is a congenital heart defect in which the septal leaflet of the tricuspid valve is displaced towards the apex of the right ventricle of the heart.