Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest film ___ at 12 :30 is submitted .
    OUTPUT:
    
There continues to be a layering left effusion with associated airspace opacity which likely reflects atelectasis . There is likely a smaller right effusion with linear and patchy opacities at the base also suggestive of atelectasis . Possible minimal to mild interstitial edema . Overall cardiac and mediastinal contours are likely stable although difficult to assess due to the patient rotation on the current study . No pneumothorax .