Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are overinflated , with mild discoid atelectasis in the left lower lobe . Cardiomediastinal and hilar contours are normal . There are no pleural effusions or pneumothorax . Multilevel bridging osteophytes are noted in the thoracic spine .
    OUTPUT:
    
Chronic obstructive airways disease . No acute process .