Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of focal consolidation , pleural effusion or pneumothorax . The heart size is normal . The mediastinal contours are normal . A old left healed posterior eighth rib fracture is seen . No radiopaque foreign bodies are seen .
    OUTPUT:
    
No acute cardiopulmonary process . Since not all ingested foreign bodies are radioopaque , a contrast swallow may be needed for detection .