Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP radiograph demonstrates clear lungs bilaterally . Lungs are hyperinflated with relative lucency within the upper lobes bilaterally consistent with emphysematous changes . Cardiomediastinal and hilar contours are within normal limits . There is no evidence of pulmonary edema , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process . Hyperinflated and relatively lucent upper lobes is suggestive of pulmonary emphysematous changes .