The authors describe treating a 6-cm right coronary artery bypass graft aneurysm that was causing recurrent angina. With use of the combined skills of interventional radiologists and cardiologists, the aneurysm was successfully occluded by using a stent-graft typically used to treat aneurysms in the peripheral circulation. One month after the procedure, the aneurysm had sealed at follow-up computed tomographic angiography.