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 . The lungs are clear . Small anterior osteophytes are noted along the mid to lower thoracic spine . On the lateral view the extreme costophrenic sulci are excluded , but there is no positive evidence for pleural effusions or of pneumothorax .
    OUTPUT:
    
No evidence of acute disease .