Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes a low , results in crowding of the bronchovascular structures . There is no pulmonary edema . There are trace bilateral pleural effusions . A large hiatal hernia is again noted with adjacent atelectasis . There is no focal consolidation worrisome for pneumonia . The heart is normal size . The mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Trace bilateral pleural effusions .