Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but clear except for upper lung apex scarring . There is no pleural effusion or pneumothorax . Cardiac size is within normal limits . There is no intra-abdominal free air identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . No free air . Hyperinflated lungs .