Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval retraction of endotracheal tube , with distal tip now positioned approximately 4 cm above the carina . There has been interval placement of a left IJ central line , whose distal tip projects over the mid SVC . An NG tube is again seen coursing inferiorly with distal tip and side port projecting over the left upper quadrant . Lower lung opacities are concerning for aspiration / pneumonia .
    OUTPUT:
    
Lines and tubes positioned appropriately . Lower lung opacities concerning for aspiration / pneumonia .