Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . There is mild bibasilar atelectasis . There is a left - sided pacemaker with the lead in appropriate position in the right ventricle . There is no evidence of pneumothorax or pleural effusion . No focal consolidations concerning for infection are identified .
    OUTPUT:
    
No evidence of a pneumothorax . Pacemaker with the lead in appropriate position .