Myxoma of the mitral valve: diagnosis by 2-dimensional and 3-dimensional echocardiography.

In this report we describe a 39-year-old patient who had left-sided hemiparesis. In search of a source of embolism, we performed transthoracic echocardiography, which did not show any abnormalities. Transesophageal echocardiography revealed a small tumor of the posterior mitral leaflet. Three-dimensional transesophageal echocardiography was subsequently performed and demonstrated more accurate information about the size, the morphology, and the attachment point of the tumor. Furthermore, the reconstruction provided excellent spatial visualization of the pathomorphology of the mitral valve and was a useful addition for optimal preoperative diagnostic management. The tumor was excised, and histologic examination confirmed the myxomatous character of the tumor. Mitral valve myxomas are rare. This is the first case reported of a mitral valve myxoma being visualized by 3D echocardiography.