Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 19 :22 is submitted .
    OUTPUT:
    
There are now moderate - sized bilateral layering effusions with patchy bibasilar airspace opacities suggestive of compressive lower lobe atelectasis , although pneumonia or aspiration should also be considered . No evidence of pulmonary edema . No pneumothorax . Overall cardiac and mediastinal contours are likely stable , although cardiac size is difficult to assess due to the pleural effusions .