Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overall , there has been no significant interval change . No focal consolidation , large pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Multiple left - sided rib fractures seen on chest CT performed today at 20 : 50 were better appreciated on chest CT , which is more sensitive .
    OUTPUT:
    
No evidence of pneumothorax .