Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the earlier same day chest radiograph , new bilateral chest tubes have been placed , moderate left pleural effusion is improved , and small right pleural effusion is unchanged . A tiny right pneumothorax may be present but is not clearly seen . No left pneumothorax . Small pericardial effusion is unchanged with persistence of substantial cardiomegaly .
    OUTPUT:
    
1 . Moderate left pleural effusion is improved , small right pleural effusion is unchanged , and a tiny right pneumothorax may be present following placement of bilateral chest tubes earlier today .