Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperinflated suggesting underlying obstructive pulmonary disease . No confluent opacity is identified to suggest pneumonia . There is no pulmonary edema or pleural effusions . Cardiomediastinal and hilar contours are within normal limits . No pneumothorax is evident . Healed left - sided rib fractures are noted .
    OUTPUT:
    
No acute cardiopulmonary process .