Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded . There is mild coarsening of interstitial markings similar to the prior study . There is mild bibasilar atelectasis . Opacities projecting over the spine on lateral radiograph likely reflect atelectasis . There is no pleural effusion or pneumothorax . Surgical clips projecting in the left apex are likely from prior wedge resection . Heart size is normal . The mediastinal and hilar contours are normal . Coils are seen in the right upper quadrant .
    OUTPUT:
    
No convincing evidence of pneumonia . Opacities projecting over the spine on the lateral radiograph are likely atelectasis .