Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided dual - chamber pacemaker device is again noted with leads terminating in unchanged positions of the left atrium and left ventricle . Aortic Corevalve device remains in unchanged position . Heart size is normal . Mediastinal and hilar contours are similar . Atherosclerotic calcifications at the aortic knob are again present . Previously noted pattern of mild pulmonary edema has improved . Lungs remain hyperinflated with linear opacities in the lung bases most likely reflective of atelectasis . There may be small bilateral pleural effusions , but no pneumothorax is present . There is no new focal consolidation . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Bibasilar atelectasis with trace bilateral pleural effusions . Previously noted mild pulmonary edema has essentially resolved . No new focal consolidation .