Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The lungs are hyperinflated consistent with emphysema as seen on recent CT from ___ . There is no pleural effusion or pneumothorax . Subtle opacity at the base of the right lung likely reflects a combination of mucous plugging and atelectasis as seen on recent chest CT however infection should be considered .
    OUTPUT:
    
Subtle opacity at the base of the right lung is likely related to mucous plugging and atelectasis as seen on recent chest CT however infection should be considered in the appropriate clinical setting .