Giant right coronary artery aneurysm in the setting of the acute coronary syndrome: A case report.

Giant right coronary artery (RCA) aneurysm is a rare coronary artery pathology. We describe a 45-year-old gentleman who presented with unstable angina of recent onset. Diagnostic workup including chest computed tomography angiography and left heart catheterization demonstrated three-vessel coronary artery disease with giant proximal RCA aneurysm. In the view of the severity of the coronary artery disease and the risk of rupture associated with the giant RCA aneurysm and the clinical presentation, the patient was successfully treated by coronary artery bypass surgery. During this procedure, the RCA aneurysm was ligated at both inflow and outflow. The patient recovered well and was discharged home.