Endocardial cushion defects.
D000790:Angiocardiography; D003937:Diagnosis, Differential; D004699:Endocardium / Q000002:abnormalities* / Q000196:embryology; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging*; D006343:Heart Septal Defects / Q000000981:diagnostic imaging; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging; D014261:Tricuspid Valve / Q000000981:diagnostic imaging