Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bedside AP radiograph of the chest demonstrates that the left PICC has been retracted and now lies in the upper segment of the SVC . The study is otherwise unchanged , including atelectasis of the right lower lobe and left lingula , as well as chronic left lower lobe collapse . There is no pneumothorax or effusion .
    OUTPUT:
    
Repositioned left PICC now terminates in the upper SVC . The study is otherwise unchanged .