Discovery of a parachute mitral valve complex (Shone's anomaly) in an adult.

Parachute mitral valve complex is an unusual congenital anomaly described by Shone et al. It is characterized by a parachute deformity of the mitral valve associated with additional forms of left heart anomalies, such as aortic valvular stenosis and coarctation of the aorta. Fewer than 50 cases of Shone's complex have been reported in the literature, and it has only been observed in children. We report the case of a 33-year-old man who was referred to our department because of atrial fibrillation. Echocardiographic evaluation and aortogram evidenced a Shone's complex, including a parachute mitral valve anomaly, an aortic bicuspid valvular anomaly, and a coarctation of the aorta.