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A 66-year-old, previously healthy woman presented with an acute onset of weakness on the left side of the body. A computed tomographic scan of the head revealed a small infarction involving the right parietal subcortical region. The results of carotid ultrasonography, magnetic resonance imaging, and tests for a hypercoagulable state failed to reveal a cause for the stroke. A transesophageal echocardiogram (Panel A) showed long, hypermobile, filiform echodensities on the left coronary cusp of the aortic valve — a finding consistent with the presence of giant Lambl's excrescences of the aortic valve (arrow); they were presumed to be the cause . . . [Full Text of this Article] |
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