Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous image , third above catheter has been advanced . The course of the catheter is unremarkable , the tip is not included on the image and , thus , located be low the gastroesophageal junction . The right PICC line is unchanged . No pneumothorax .
    OUTPUT:
    
As compared to the previous image , third above catheter has been advanced . The course of the catheter is unremarkable , the tip is not included on the image and , thus , located be low the gastroesophageal junction . The right PICC line is unchanged . No pneumothorax .