Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the endotracheal tube projects over the mid thoracic trachea . A Swan - Ganz catheter , left central venous line and left ventricular assist device are again present . The tip of the Dobhoff feeding tube projects to the right of the spine . No significant interval change in the bilateral patchy airspace opacities . Unchanged retrocardiac opacity . No pneumothorax identified .
    OUTPUT:
    
No significant interval change in the bilateral patchy airspace opacities . No pneumothorax identified .