Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size and cardiomediastinal contours are normal . Minimal bibasilar opacities are decreased since the prior exam , likely atelectasis . Lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax . Cervical spine fusion hardware is in stable position .
    OUTPUT:
    
No acute cardiopulmonary process .