Three major coronary artery-to-left ventricular fistula: an unusual cause of a diastolic murmur at the apex.

Coronary artery fistula involving all the 3 major coronary arteries and emptying into the left ventricle is rare. We report an asymptomatic patient with coronary artery fistula from the 3 major coronary arteries communicating with the left ventricle, who presented with a diastolic murmur at the apex.