Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The study is limited due to large body habitus . The heart is severely enlarged . There are perihilar hazy opacities with vascular indistinctness compatible with mild to moderate pulmonary edema . Assessment of the lung bases is limited due to technique , but there may be atelectasis . No large pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Limited study . Mild to moderate pulmonary edema . Bibasilar airspace opacities may reflect atelectasis . Infection is not excluded .