Figure 2From: Cor triatriatum and lipomatous hypertrophy of the interatrial septum in the elderly: a case report Transthoracic echocardiogram: apical 4-chamber view showing a fibromuscular membrane subdividing the left atrium into proximal and distal chambers (PANEL A). Lipomatosis of the interatrial septum, with the typical "dumbbell" aspect is evident as well (PANEL B and C).Back to article page