Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian approach central venous catheter , left chest tube , enteric tube , and ET tube appears stable in location . Lungs remain low in volume . There is no discernable pneumothorax . Bilateral nondisplaced and minimally displaced rib fractures are better delineated on prior CT .
    OUTPUT:
    
Lines and tubes in appropriate position . No discernable pneumothorax .