A 14-Year-Old Boy with Unusual Presentation of Respiratory Distress

Figure 3

Transesophageal echocardiogram (a) is a midesophageal four-chamber view demonstrating cor triatriatum with a membrane separating the pulmonary veins from the left ventricle inflow and (b) is a midesophageal two-chamber view with Doppler flow demonstrating restrictive flow through the opening of the cor triatriatum membrane. LV: left ventricle, RV: right ventricle, LA: left atrium, RA: right atrium, MV: mitral valve, S: superior, I; inferior, R: right, L: left, A: anterior, and P: posterior.

(a)

(b)