Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph ___ , no significant change . Lungs are clear without pleural effusion , pneumothorax , or focal consolidation . Mild hyperinflation of the lungs . The heart , mediastinum , and hilar contours are normal . Surgical clips in the lower neck are unchanged , consistent with thyroidectomy .
    OUTPUT:
    
No acute cardiopulmonary process .