A<unk>  <unk>  is a rare congenital malformation characterized by two valve<unk> s with two separate subvalvular apparatus.  It is mostly associated with atrioventricular septal defect, but may also be associated with other congenital heart defects such as left-sided obstructive lesions, ventricular septal defects or cyanotic lesions.  Isolated<unk>  have been rarely reported.
Double orifice mitral valve
Quadricuspid aortic valve
Quadricuspid pulmonary valve
Bicuspid aortic stenosis anatomy
Subvalvular aortic stenosis
Bicuspid aortic stenosis
Supravalvular aortic stenosis
Bicuspid aortic stenosis pathophysiology