Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal , and hilar contours appear unchanged . There are low lung volumes . Linear opacities in bilateral lung bases once again likely represent atelectases . No pneumothoraces are seen . Small pleural effusion may be seen on the left side or this maybe related to pericardial fat . Bones appear intact .
    OUTPUT:
    
Likely bibasilar atelectasis and low lung volumes . If clinical suspicion for pneumonia is high , suggest repeat PA and lateral views with better inspiration .