Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . The lungs are clear with no focal consolidations , pleural effusions or pneumothorax . There is redemonstration of minimal scarring in the lower lungs which is unchanged . Note is made of an old rib fracture .
    OUTPUT:
    
No radiographic evidence of an acute cardiopulmonary process .