Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Leads of a left chest wall pacer terminate in the right atrium and ventricle . Lung volumes are decreased , exaggerating heart size , which appears mildly enlarged . Mediastinal contours are otherwise stable . Pulmonary edema has increased since the prior exam with small bilateral pleural effusions . Increased retrocardiac opacity may represent atelectasis or aspiration . No pneumothorax .
    OUTPUT:
    
Pulmonary edema with small bilateral pleural effusions and bibasilar lung opacities that may represent atelectasis or aspiration in the appropriate clinical setting .