Abstract
We report three cases with endocarditis-related mycotic intracranial aneurysms. Two presented with hemorrhage and one with cerebral infarction followed by aneurysm formation in the same territory. All three suffered bacteremia and infectious endocarditis. Two had multiple aneurysms. Ruptured and/or enlarging aneurysms were treated with endovascular coil embolization. For unruptured, asymptomatic aneurysms that were stable in size, systemic antibiotic therapy and a serial follow-up with angiography was done. Embolization was successful in all cases. Two had cardiac surgery uneventfully. Two had untreated unruptured aneurysms that disappeared on the follow-up angiography after long-term systemic antibiotic therapy. There was no reassurance of treated aneurysms.
