Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest wall pacer lead projects over the left ventricle . Again seen , is moderate bilateral interstitial and airspace opacities most pronounced at the lung bases . A right upper lobe opacity is also present and likely represents a combination of atelectasis and pleural fluid . There is no pneumothorax . There are bibasilar pleural effusions . Enlarged cardiac silhouette is unchanged . Dense retrocardiac atelectasis is also present .
    OUTPUT:
    
Moderate pulmonary edema , may be mildly improved compared to prior , although direct comparison is difficult due to differences in position .