Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . The lungs are clear , without focal consolidation , pleural effusion or pneumothorax . A linear opacity in the right lung base , is unchanged and likely represents scarring . The cardiomediastinal and hilar contours are stable , with a mildly tortuous thoracic aorta . No pleural effusions or pneumothorax is identified . Cervical spine fusion hardware is partially imaged in this study .
    OUTPUT:
    
No acute cardiopulmonary pathology .