Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: S - shaped thoracolumbar scoliosis is again demonstrated . Heart size is normal . The mediastinal and hilar contours are unremarkable . Lungs are clear . No pleural effusion or pneumothorax is identified . Pulmonary vascularity is normal . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .