Coronary artery fistula is an uncommon congenital malformation that generally drains into the main pulmonary artery or the right side of the heart. This is a case report on bilateral coronary artery fistulas communicating with the main pulmonary artery and the left ventricle. A 65-year-old woman was investigated for recurrent chest pain. Coronary angiography revealed this anomalous coronary artery connection without evidence of atherosclerotic coronary artery disease. The rarity of coronary artery fistulas involving both the main pulmonary artery and the left ventricle is emphasized.
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