PMC5831310_01
A) Transthoracic echocardiogram showing cor triatriatum: proximal and distal
left atrium separated by a membrane (Pointing white arrow), LA: left atrium;
LV: left ventricle; RV: right ventricle; RA: right atrium. B)
Transesophageal echocardiogram showing cor triatriatum: proximal and distal
left atrium separated by a membrane (Pointing white arrow), LA: left atrium;
LV: left ventricle.
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Transthoracic echocardiogram (TTE) showed presence of a membrane in left atrium suggestive of cor triatriatum [Figure 1A]. This finding was confirmed with transesophageal echocardiogram (TEE), which revealed a membrane in the left atrium attaching at the Coumadin ridge and the atrial septum, just caudal to the fossa ovalis [Figure 1B].