Fig. 3From: Right pneumothorax with congenital pericardial defect showed right atrium mimicking bulla in surgeryOn chest radiography after surgery (A), the pneumopericardium seen preoperatively on the left side of the heart had disappeared, and the protruding right atrium on the right side of the heart had returned to the mediastinum. Computed tomography after surgery with lung window settings (B) shows that the right atrium was pushed back into the mediastinum by the inflated lung. The enhanced computed tomography after surgery with mediastinal window settings (C) shows that the right atrium was present at the site of the pericardial defect, consistent with the surgical findingsBack to article page