Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is unchanged . The mediastinal contours appear stable , with calcification of the aorta again noted . Again seen diffuse bilateral pulmonary edema , overall unchanged compared to the prior study . There are likely small bilateral pleural effusions . Again seen are bibasilar patchy opacities which may reflect atelectasis . No pneumothorax is seen . The osseous structures demonstrate diffuse multilevel degenerative changes within the thoracic spine .
    OUTPUT:
    
Limited study due to body habitus , however there is no significant interval change in the diffuse bilateral pulmonary edema .