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 . Nipple shadows are again visible bilaterally . Otherwise , the lung fields appear clear . There are no pleural effusions or pneumothorax . There is similar mild rightward convex curvature centered along the mid thoracic spine .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .