PT - JOURNAL ARTICLE AU - L S Perry AU - J F King AU - H J Zeft AU - J C Manley AU - C M Gross AU - L S Wann TI - Two-dimensional echocardiography in the diagnosis of left atrial myxoma. AID - 10.1136/hrt.45.6.667 DP - 1981 Jun 01 TA - British Heart Journal PG - 667--671 VI - 45 IP - 6 4099 - http://heart.bmj.com/content/45/6/667.short 4100 - http://heart.bmj.com/content/45/6/667.full SO - Heart1981 Jun 01; 45 AB - We performed M-mode echocardiograms on 11 patients who later had left atrial myxomas removed at operations. Seven of these 11 patients were also examined with two-dimensional echocardiography. M-mode echocardiography showed the characteristic pattern of a left atrial mass entering the mitral orifice during diastole in nine of the 11 patients. M-mode echocardiographic findings were equivocal in two patients because a short tumour stalk prevented significant motion of the tumour. Cross-sectional echocardiography clearly showed a left atrial mass attached by a stalk to the interatrial septum in all seven patients examined, including one patient in whom the tumour was immobile. Three-dimensional measurements of tumour size made from orthogonal cross-sectional echocardiographic planes were within 6 mm of similar measurements made on the excised tumours.