A rare case of giant left atrium in a child

A 9-year-old girl presented with cough, shortness of breath was admitted to our hospital. The electrocardiogram demonstrated atrial tachycardia. Chest X-ray showed marked cardiomegaly with a cardiothoracic ratio of 0.78 ( Panel A ). Echocardiography revealed a giant left atrium (GLA) with an anteroposterior diameter of 9.5 cm, which …