Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . The pulmonary vascularity is normal . The lungs are clear . No pleural effusion or pneumothorax is seen . There are mild degenerative changes in the thoracic spine . No displaced rib pain fractures are clearly evident .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced rib fractures identified . If there is continued concern for rib fracture , then a dedicated rib series is recommended .