Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . There is marked elevation of the right hemidiaphragm . Bibasilar opacities , left greater than right could represent atelectasis or infection in the appropriate clinical setting . There is no effusion or pneumothorax . No evidence of pulmonary edema . Note is made of chronic appearing rib fractures on the left .
    OUTPUT:
    
Bibasilar opacities , left greater than right could represent atelectasis or infection in the appropriate clinical setting .