Coronary artery fistula is a rare heart defect found in approximately 0.2%of the adult population undergoing coronary angiography. The diagnosis is usually m ade by aortography and selective coronary angiography. We report here an adult p atient with rheumatic mitral stenosis and left anterior descending coronary arte ry and pulmonary conus branch of right coronary artery-pulmonary artery fistula s detected by coronary angiography.
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