A case of coronary arterio-venous fistula: the role of cardiac computed tomography

Coronary artery fistulas (CAFs) are often incidental findings in patients undergoing conventional coronary angiography (CAG). CAFs represent a congenital or acquired abnormal vascular communication of coronary arteries with cardiac chambers or any segment of the systemic or pulmonary circulation bypassing capillaries within myocardium (1).