Diagnosis of mitral valve myxoma by transesophageal echocardiography.

Mitral valve myxomas are rare. We report a patient with a mitral myxoma arising from the posterior mitral leaflet in whom transthoracic echocardiography revealed equivocal findings. However, transoesophageal echocardiography provided accurate relevant anatomical information including the size, morphological characteristics, and tumour attachment point.