Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Support lines and tubes are unchanged in appearance compared to the prior study . Subtle lucencies are adjacent the mediastinum are likely artifactual due to a combination of atelectasis and pulmonary edema . Patchy bilateral airspace opacities are noted , there has been improvement in aeration of the right upper lobe with a more focal area of consolidation in the right lower lobe . The given the rapidly changing appearance , this likely reflects pulmonary edema . The previously demonstrated left pneumothorax is less clearly seen on today 's study . Multiple rib fractures noted .
    OUTPUT:
    
Findings consistent with pulmonary edema , infection can not be excluded .