Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube , NG tube , left chest tube , and mediastinal drains have been removed . The right IJ line tip in the right atrium is again seen . Lung volumes are low with volume loss at the bases . There continues to be dense retrocardiac opacity compatible with a combination of volume loss / infiltrate / effusion . The upper lungs are clear
    OUTPUT:
    
No new infiltrate . No pneumothorax