[Diagnosis of left auricular myxomas by echocardiography. 2 cases].

The echocardiograms of two patients with a myxoma of the left atrium are presented. In each case there was an abnormal echo mass visible in diastole behind the greater mitral cusp. In addition, in one case, the mass was seen in the left atrium in tricuspid and aortic projection. The diagnosis was not suspected clinically and it was the ultrasound examination, carried out on a routine basis, which led to its discovery. This noninvasive technique is thus a valuable study in the demonstration of myxomas of the left atrium.