Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . The lungs are clear and the pulmonary vascularity is normal . No pleural effusion or pneumothorax is seen . There is no evidence of pneumomediastinum . There are no acute osseous abnormalities . No radiopaque foreign body is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No radiopaque foreign body is seen , and no evidence for pneumomediastinum .