Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear similar to earlier baseline radiographs . Right basilar opacification has resolved . The lungs appear clear . There are no pleural effusions or pneumothorax . Bony structures are unremarkable aside from minimal degenerative changes .
    OUTPUT:
    
No evidence of acute disease .