Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , substantial pulmonary edema is increased , bilateral layering pleural effusions , right greater than left , are increased with persistent bibasilar and retrocardiac atelectasis . Lung volumes remain low . Cardiomegaly is difficult to evaluate but also appears worse . No pneumothorax .
    OUTPUT:
    
Substantial pulmonary edema is increased , bilateral layering pleural effusions , right greater than left , are also increased with persistent bibasilar retrocardiac atelectasis since ___