Abstract Giant right coronary artery aneurysm is a rare coronary artery
pathology. We describe a 45-year-old gentleman who presented with
unstable angina of recent onset. Diagnostic work up including chest CT
angiography and left heart catheterization demonstrated 3-vessel
coronary artery disease with giant proximal right coronary artery
aneurysm. In the view of the severity of the coronary artery disease and
the risk of rupture associated with the giant right coronary artery
aneurysm and the clinical presentation, patient was successfully treated
by coronary artery bypass surgery. During this procedure, the right
coronary artery aneurysm was ligated at both inflow and outflow. Patient
recovered well and was discharged home.