Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 05 :27 is submitted .
    OUTPUT:
    
There are worsening airspace opacities in the left lower lobe , right lower lobe and right upper lobe which would be concerning for evolving pneumonia or aspiration . No pulmonary edema . Overall cardiac and mediastinal contours are stable . No pneumothorax .