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 the cardiac silhouette is re - demonstrated . Mediastinal contours are unchanged . Mild interstitial pulmonary edema is new in the interval with small bilateral pleural effusions . Bibasilar patchy opacities likely reflect areas of atelectasis . No pneumothorax is present . There are moderate multilevel degenerative changes seen in the thoracic spine .
    OUTPUT:
    
Mild interstitial pulmonary edema with small bilateral pleural effusions and bibasilar atelectasis .