Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The PICC line has been withdrawn in the interim and is now located in the lower SVC in the region of the cavoatrial junction . Right basilar atelectasis is slightly increased . There is no pleural effusion or pneumothorax . The cardiac silhouette and mediastinal contours are notable only for tortuosity of the aortic arch .
    OUTPUT:
    
Right upper extremity PICC with its tip in the lower SVC in the region of the cavoatrial junction .