Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate hyperinflated lungs . No focal consolidation is identified . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . No evidence of pulmonary edema .
    OUTPUT:
    
No evidence of pneumonia . Emphysematous changes .