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The combination of coronary arteriovenous fistula to the coronary sinus (CS), dilatation of the entire length of coronary artery, coronary aneurysm and persistent left superior vena cava (PLSVC) is very rare. We present the case of a 63-year-old female admitted for dyspnea on exertion, orthopnea, and facial edema. Echocardiography detected a giant coronary artery with shunt flow, dilated CS and PLSVC and a coronary angiography reaffirmed these findings. The calculated ratio of pulmonary blood flow to systemic blood flow by cardiac catheterization was 1.53. After multidisciplinary review considering old age, hypoactivity due to underlying Parkinsonism and relatively small amount of shunt flow, medical therapy was chosen. The patient remained asymptomatic for 10 months after discharge without intervention.

Congenital Giant Right Coronary Artery Aneurysm With Fistula to the Coronary Sinus and Persistent Left Superior Vena Cava in an Old Woman