An Unusual Huge Coronary Artery Aneurysm with Fistula

Coronary artery aneurysms are noted in 0.15% to 4.9% of patients undergoing coronary angiography. Atherosclerosis accounts for 50% of coronary aneurysms in adults. We report a 64-year-old female with a huge right coronary artery aneurysm with fistula connecting the aneurysm with the pulmonary artery and a fistula connecting the proximal left anterior descending artery with the pulmonary artery. Surgical resection of the coronary artery aneurysm and suture ligation of the coronary artery fistulas were performed. Pathological examination disclosed aneurysm with focal fibrosis and calcification. The patient presenting shortness of breath and angina-like symptoms caused by a huge right coronary artery aneurysm with compression of right ventricular outflow tract made this case noteworthy. The patient’s symptoms resolved after surgical intervention.