Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . No focal consolidation , edema , effusion , or pneumothorax . The heart is normal in size . The mediastinum is not widened . Aortic knob calcifications are mild . There is left curvature of the thoracolumbar spine .
    OUTPUT:
    
Slightly hyperinflated lungs which could be seen with obstructive disease . No focal pneumonia .