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Headache and aphasia suddenly developed in a 49-year-old man. He had a history of aortic valvotomy for severe congenital aortic stenosis 30 years previously, and severe aortic stenosis and some aortic regurgitation had recently developed. Magnetic resonance imaging showed a 3.2-cm hemorrhagic lesion in the left temporal lobe (Panel A). Blood cultures grew Cardiobacterium hominis. He was treated for bacterial endocarditis with intravenous ampicillin and gentamicin. Cerebral angiography (Panel B) demonstrated two cerebral, probably mycotic, aneurysms involving the distal midtemporal (curved arrow) and parietal (straight arrow) branches of the left middle cerebral artery. Transesophageal echocardiography showed small, mobile aortic-valve . . . [Full Text of this Article] |