Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . No confluent consolidation is identified . There is no pulmonary edema or pleural effusion . Mediastinal and hilar contours are within normal limits . The heart size is at the upper limits of normal . No radiopaque foreign body is identified . There is a possible small hiatal hernia .
    OUTPUT:
    
No acute cardiopulmonary process . No radiopaque foreign body .