Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since earlier same day chest radiograph , moderate predominantly perihilar opacities are unchanged . Lung volumes are low . The tip of an endotracheal tube is seen 3 .8 cm above the carina . A right PICC line terminates in the lower SVC . Heart size is unchanged . No pneumothorax .
    OUTPUT:
    
No pneumothorax . Otherwise , no interval change .