Fistula from Circumflex Coronary Artery to Superior Vena Cava

ANEURYSMS of the left coronary artery draining into the superior vena cava have not previously been recorded. Such an anomaly, however, may exist, as demonstrated by this report, and may easily be confused with patent ductus arteriosus, aortopulmonary window, sinus of Valsalva aneurysm, pulmonary arteriovenous fistula, and even rheumatic valvular disease. Aortography, or better yet selective coronary arteriography, correctly outlines this anomaly which is amenable to surgical correction.