Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The lungs are hyperinflated with flattened diaphragms suggesting underlying COPD . There is no focal consolidation , effusion , or pneumothorax . No mass is seen . Cardiomediastinal silhouette is normal . Bony structures intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process . Hyperinflated lungs suggest underlying COPD .