Mycotic pseudoaneurysm associated with aortic coarctation

Development of a mycotic aneurysm or pseudoaneurysm after subacute bacteria l endarteritis is uncommon. Nonetheless, patients with coarctation of the a orta are more likely to develop this complication. We describe a case of a large pseudoaneurysm discovered in a child with a previously undiagnosed ao rta coarctation. Successful repair was performed with the aid of partial le ft heart bypass and the use of an interposition graft. A high index of susp icion is necessary to accurately diagnose this rare but life-threatening en tity.