Coronary artery fistulas are infrequent congenital malformations. We present the case of a patient with acute coronary syndrome and fistula between the proximal left anterior descending artery (LAD) and the pulmonary artery. The fistula was diagnosed during coronary angiography. Its presence and morphology was confirmed by a 64-slice computer tomography scan. The patient underwent a successful coronary artery bypass grafting procedure with surgical closure of the fistula.
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