Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated suggesting COPD in the appropriate clinical setting . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Left hemidiaphragm is mildly elevated .
    OUTPUT:
    
Hyperinflated , clear lungs . No acute intrathoracic process .