Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle . Mild to moderate enlargement of cardiac silhouette is unchanged . The mediastinal and hilar contours are similar , without evidence for pulmonary edema . Previously noted small right pleural effusion has nearly completely resolved , with residual atelectasis in the right lower lobe . Lungs are hyperinflated . No pneumothorax is present . No concerning focal consolidation is present .
    OUTPUT:
    
Decreased size of small right pleural effusion with residual right lower lobe atelectasis . No new focal consolidation .