Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . Aorta remains tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vascularity is normal and the lungs are clear . No pleural effusion or pneumothorax is visualized . No acute osseous abnormalities are identified . Levoscoliosis of the thoracic spine is re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary process .