Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear unchanged . There is patchy streaky left basilar opacity suggesting minor atelectasis . Otherwise , the lungs appear clear . There are no pleural effusions or pneumothorax . The bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute disease ; findings suggesting minor basilar atelectasis .