<unk> s are very rare cardiac<unk> lar anomalies with a prevalence of 0.013% to 0.043% of cardiac cases and a prevalence of 1 in 6000 patients that undertake aortic<unk>  surgery. There is a slight male predominance in all of the cases, and the mean age is 50.7.
Quadricuspid aortic valve
Bicuspid aortic valve
Flutter valve
Mitral annular calcification
Supravalvular aortic stenosis
Accessory auricle
Overriding aorta
Mitral annular disjunction