abnormal tricuspid valve morphology MP:0002624 MPheno.ontology abnormal tricuspid valvar morphology any structural anomaly of the valve located between the right atrium and the right ventricle of the heart, and contains three cusps, the anterior cusp (infundibular cusp), the posterior cusp (marginal cusp), and the septal cusp (medial cusp), attached to the outer fibrous ring (anulus) tricuspid valvar dysplasia tricuspid valve dysplasia abnormal atrioventricular valve morphology