Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 1 day prior , the mild left apical pneumothorax appears unchanged , but cardiac silhouette has increased in size . Moderate right pleural effusion and small left pleural effusion appear unchanged with substantial bibasilar atelectasis . The right - sided IJ and left chest tube are unchanged and appropriately positioned . Median sternotomy wires are midline and intact .
    OUTPUT:
    
Unchanged , mild , left apical pneumothorax . Increase cardiac silhouette concerning for worsening cardiomegaly or a pericardial effusion .