Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . The cardiac , mediastinal and hilar contours appear unchanged , however . There are basilar opacities including a layering opacity along the posterior margin of the right hemidiaphragm , highly suggestive of atelectasis . Surgical clips project over the right upper quadrant . The patient is status post anterior cervical fusion .
    OUTPUT:
    
Streaky basilar opacities are present , suspected to represent atelectasis in the setting of very low lung volumes , but it is difficult to exclude developing pneumonia at the right lung base . Short - term follow - up radiographs with better inspiration may be helpful to reassess if needed clinically .