Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded . There is opacity in the lingula and faint opacities in the right lower lung , similar to ___ . No new focal airspace opacity is detected . The heart is not enlarged . Mediastinal and hilar contours are normal . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Opacities in the lingula and right base are similar to ___ and likely reflect chronic changes . Superimposed pneumonia can not be completely excluded .