Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is probably a small new pleural effusion on the left side only with minimal associated atelectasis . However , lung fields appear otherwise clear . There is no evidence for pleural effusion on the right .
    OUTPUT:
    
Findings suggest trace new pleural effusion on the left with minimal associated atelectasis .