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 appear clear . There are no pleural effusions or pneumothorax . Prior fractures involving the right posterior fourth and fifth ribs appear healed , having evolved since the prior study with remodeling . Less well characterized lateral right - sided rib deformities are probably unchanged .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Healed right - sided rib fractures .