Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ there has been marked improvement in a known large left loculated effusion though there is a persistent small - to - moderate loculated effusion demonstrated along the lateral aspect of the left hemithorax . Two apical left - sided chest tubes and a left basilar chest tube remain in unchanged position . There is no evidence of large pneumothorax with minimal lucency demonstrated along the left basilar chest tube . There is persistent left retrocardiac opacification and improvement in right basilar atelectasis . There are no new focally occurring opacities concerning for pneumonia . The cardiomediastinal and hilar contours are stable demonstrating moderate cardiomegaly . Pulmonary vascularity is not increased .
    OUTPUT:
    
Little change since ___ though with persistent small - to - moderate loculated pleural fluid demonstrated along the lateral aspect of the left hemithorax .