Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest examination from ___ , there has been no significant change . Scattered opacities in the lower lungs are unchanged and could reflect atelectasis , less likely pneumonia . There is no pneumothorax . The cardiomediastinal silhouette is stable . The right IJ central venous catheter terminates in the lower SVC . An enteric tube courses below the diaphragm , and likely terminates in the gastric fundus , it s tip is not clearly visualized .
    OUTPUT:
    
Persistent lower lobe opacities unchanged from prior examinations could be atelectasis or pneumonia .