Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph , heart size , mediastinal , and hilar contours are unchanged . Lungs are well inflated without focal consolidation , pleural effusion , or pneumothorax . Mild scoliosis of the thoracolumbar spine is again noted .
    OUTPUT:
    
No acute cardiopulmonary process .