Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , increased compared to the previous study . The mediastinal contour is unchanged . There is mild pulmonary edema , new compared to the previous study , with small bilateral pleural effusions , also new . Streaky bibasilar opacities likely reflect atelectasis . No pneumothorax is identified . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary edema with small bilateral pleural effusions .