Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest film ___ at 14 : 16 is submitted .
    OUTPUT:
    
A left chest tube remains in place and there are stable postoperative changes , retrocardiac consolidation and multiple rib fractures in the left hemithorax . The right lung is grossly clear and well inflated . Overall cardiac and mediastinal contours are likely unchanged given differences in positioning between studies . Stents , surgical clips and retained contrast are again seen in the left upper quadrant . External pacing wires . No pneumothorax .