Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the study from earlier on the same day , the left subclavian PICC extends into the left internal jugular vein with tip out of view as seen on prior . No pneumothorax . A large hiatal hernia is noted . Aortic valve repair is again noted . No significant changes compared to prior study .
    OUTPUT:
    
Left PICC enters the left internal jugular with tip out of view . No pneumothorax .