Cor Triatriatum Sinister Identified after New Onset Atrial Fibrillation in an Elderly Man

Figure 2

Transthoracic echocardiogram: 2-chamber view (a) and 4-chamber view (b) showing the left atrium divided into proximal (+) and distal (∗) chambers by a fenestrated membrane (arrow).

(a)

(b)