Cor triatriatum associated with severe valvular pulmonary stenosis and patent ductus arteriosus: an unreported constellation.

A divided left atrium because of cor triatriatum is a relatively rare cardiac anomaly requiring corrective surgery. Although association of cor triatriatum with different congenital heart diseases had been reported, to our knowledge, its association with severe valvular pulmonary stenosis and patent ductus arteriozus had not been reported previously. In this paper, an asymptomatic case with cor triatriatum, severe valvular pulmonary stenosis and patent ductus arteriosus is defined.