Cerebral Aneurysm from Cardiobacterium hominis Endocarditis.

A 43-year-old male with a history of bioprosthetic aortic valve replacement and tricuspid valve annuloplasty presented with vertigo and was found to have an acute infarct in the left superior cerebellum, as well as a left-middle cerebral artery mycotic aneurysm. Blood cultures grew Cardiobacterium hominis and bioprosthetic aortic valve vegetation was found on transthoracic echocardiogram.