Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged , with mild tortuosity of the descending thoracic aorta again noted . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . No acute osseous abnormalities present . Mild levoscoliosis of the thoracic spine is re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary process .