Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . There is a small calcified granuloma in the left lower lobe , as before ; otherwise the lungs appear clear . A mixed lytic and sclerotic bone lesion along the left anterior lateral fourth rib appears unchanged allowing for differences in technique and accordingly suggests a benign finding .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Stable rib lesion .