Pseudoaneurysms are a rare complication following replacement of the ascending aorta or aorto-coronary bypass surgery. We report a case with replacement of the aorta ascendens, the aortic valve, and venous aorto-coronary bypass grafting, in whom a pseudoaneurysm developed at the site of one proximal bypass anastomosis. For the preoperative diagnosis, an ultrafast-CT (Electron Beam Tomography, EBT) was done, as neither the pseudoaneurysm, nor the venous graft could be visualized by selective coronary angiography.
