Fig. 1

The findings of chest X-ray and transthoracic echocardiography during hospitalization. a The chest X-ray on the first day of hospitalization showed an increased cardiothoracic ratio of 84.4% and bilateral pleural effusion. b The end-diastolic ventricular septal shift was still present after removal of the pericardial effusion, as evaluated by transthoracic echocardiography. c A chest X-ray after the administration of oral corticosteroid therapy detected a reduced cardiothoracic ratio of 73.4%. d Transthoracic echocardiography after the administration of oral corticosteroid therapy detected that the diastolic ventricular septal shift was improved at discharge