Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged , unchanged . The mediastinal and hilar contours are similar with tortuosity of thoracic aorta again noted . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion , focal consolidation , or pneumothorax is identified . No definite acute osseous abnormality is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .