[Fistula from the coronary artery to the peripheral branches of the left pulmonary artery].

A case is presented of a coronary artery fistula originating in the circumflex artery which drains in a branchified pattern in the peripheral branches of the left pulmonary artery. The diagnosis came as a result of a diagnostic coronarography in a woman with ischemic cardiopathy. The etiology, evolution and treatment of this exceptional coronary anomaly is being discussed.