Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The opacity at the left lung base is increased compared to ___ , concerning for progression of pneumonia . Right lower lobe volume is improved compared to ___ . Endotracheal tube terminates 1 .8 cm above the carina . Left jugular line terminates of left brachiocephalic vein . NG tube is incompletely visualized and appears to coil in the stomach .
    OUTPUT:
    
The opacity at the left lung base is increased compared to ___ , concerning for progression of pneumonia , which is possibly due to aspiration .