Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Scarring within the lung apices is re - demonstrated . Lungs are clear . No pleural effusion or pneumothorax is seen . There is no subdiaphragmatic free air .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .