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 . Right lateral basal pleural thickening appears unchanged . There is no evidence for free - flowing pleural effusion or pneumothorax . There is similar mild elevation of the right hemidiaphgram . The bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute disease .