Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No change in the positioning of the left - sided chest tube . Re demonstration of fractures of the fifth and sixth left posterior ribs . A pleural line is not present on the current study . Residual left lung atelectasis is present . The right lung is clear . Heart size is normal . No focal consolidation .
    OUTPUT:
    
No pleural line is detected to indicate residual left pneumothorax . Left lower lobe atelectasis persists , in the setting of possible splinting given the posterior rib fractures .