Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiac and mediastinal contours are normal . There are no pleural abnormalities . A slight cortical step - off in the lateral aspect of the right 9th rib is likely a minimally displaced fracture . No additional fractures are identified .
    OUTPUT:
    
1 . No acute cardiac or pulmonary process . 2 . Likely minimally displaced right 9th rib fracture . Further evaluation could be performed with a dedicated rib series with appropriate skin markers , if clinically indicated .