Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left internal jugular central venous catheter whose tip extends to the cavoatrial junction . The tip of the endotracheal tube projects 2 cm from the carina . Left apical and left basal chest tubes are present . Extensive subcutaneous emphysema is again noted , which limits evaluation of the underlying lung parenchyma . A persisting left pneumothorax is suspected . There has been slight increase in opacification of the right lung base .
    OUTPUT:
    
Limited evaluation of the lung parenchyma secondary to extensive subcutaneous emphysema . A persisting left pneumothorax is nonetheless suspected . The tip of the endotracheal tube projects approximately 2 cm from the carina .