[Non-prolapsing atrial myxoma. Description of a clinical and echocardiographic case].

: A clinically and sonographically identified case of atrial myxoma with no prolapse due to its short peduncle is described with emphasis on the importance of 2D echocardiography given the lack of both clinical symptoms and Time Motion ultrasound data in atrial myxomas prolapsing through the mitral anulus into the ventricular cavity. In fact 2D echocardiography shows up the systolic-diastolic swing of the tumour mass between the lower third of the left atrium and the atrioventricular valvular plane.