Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low and there is chronic lung disease , which is relatively unchanged since ___ . No new focal opacities are seen compared to the ___ chest radiograph ; however , right upper lobe consolidation is unchanged and may represent old pneumonia . There is no pleural effusion or pneumothorax . The heart and mediastinal contours are normal .
    OUTPUT:
    
No new focal opacities are seen . Right upper lobe consolidation was present on ___ and could represent an old pneumonia or chronic changes . The lung volumes remain low .