Congenital Giant Right Atrial Aneurysm: Echocardiographic Diagnosis and Surgical Management.

Congenital right atrial aneurysm is a rare abnormality and may easily be confused with various anomalies, such as pericardial effusion, pericardial cysts, tumors, and Ebstein's anomaly. Patients with right atrial aneurysm may be asymptomatic; but some patients may develop life-threatening complications, such as arrhythmias, congestive heart failure, or pulmonary embolism. Therefore, it is essential for correct diagnosis and appropriate patient management. We report a case of giant right atrial aneurysm in a 7-year-old boy who presented with progressive protrusion of chest. Echocardiography established the definitive diagnosis and surgical resection was successful.