Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Lungs are hyperinflated with attenuation of pulmonary vascular markings towards the upper lobes compatible with underlying emphysema . No pulmonary vascular congestion is present . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities seen . Degenerative changes of the thoracic spine are re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Emphysema .