Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate well - expanded and clear lungs bilaterally . No evidence of overinflation or radiographic signs consistent with emphysema . Symmetric biapical pleural thickening seen , unchanged since prior examination . Cardiomediastinal and hilar contours are unremarkable . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
Normal chest radiograph . No radiographic signs consistent with emphysema .