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 . An interstitial abnormality has resolved . There are no pleural effusions or pneumothorax . Bony structures are unremarkable aside from slight rightward convex curvature centered along the upper to mid thoracic spine and very small upper spinal osteophytes .
    OUTPUT:
    
No evidence of acute disease .