Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are normal . There is a small - moderate left pleural effusion , unchanged from ___ . Overlying consolidation is presumably atelectasis . There is no pneumothorax or right pleural effusion . Heart is mildly enlarged but unchanged . The mediastinal and hilar contours are unremarkable . Bilateral rib fractures are unchanged . There are no new rib fractures seen .
    OUTPUT:
    
1 . Unchanged small - moderate left pleural effusion . 2 . Bilateral rib fractures , unchanged . No new fracture seen .