Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unchanged . Pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is present . Scarring within the lung apices is again noted . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .