Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded without focal opacities . Cardiomediastinal and hilar contours are unremarkable with the exception of mild aortic tortuosity . There is no pleural effusion or pneumothorax . Minimal bibasilar linear atelectasis . Of note , there is no evidence of pneumoperitoneum .
    OUTPUT:
    
No evidence of acute cardiopulmonary process or pneumoperitoneum .