Huhta J C, Edwards W D, Danielson G K
J Thorac Cardiovasc Surg. 1981 Apr;81(4):577-9.
A supravalvular mitral ridge containing the dominant left circumflex coronary artery was found at autopsy in a 2-month-old girl with atrial and ventricular septal defects. This ridge is compared to the classical supravalvular mitral ring, and surgical implications are discussed.