Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal and hilar contours are normal . Lungs demonstrate stable hyperinflation without paucity of the upper lung zones to suggest COPD . Lungs are clear . No pleural effusion or pneumothorax evident .
    OUTPUT:
    
Stable hyperinflation of lungs . No focal opacifications . Please note chest radiographs are not sensitive for subtle interstitial lung disease or endobronchial lesions . If continued clinical concern , recommend evaluation with HRCT .