Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged , stable . Lungs are hyperexpanded with flattening of the diaphragms consistent with COPD . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
Hyperexpanded lungs , consistent with COPD . No acute cardiopulmonary process .