Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs have been hyperexpanded and previous Chest CT have shown emphysema . Bibasilar atelectasis is new , left greater than right , with slight elevation of the left hemidiaphragm . No pleural effusions , pneumothorax , or pneumomediastinum . Heart size is top normal . The aorta is tortuous and unfolded . There is an old healed fracture of the right posterior ninth rib .
    OUTPUT:
    
New bibasilar atelectasis . COPD .