Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 09 :52 is submitted .
    OUTPUT:
    
There are small layering bilateral effusions with associated bibasilar airspace opacities likely reflecting compressive atelectasis , although pneumonia can not be excluded . No evidence of pulmonary edema . No pneumothorax . Overall cardiac and mediastinal contours are likely stable given differences in positioning .