Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiographs were obtained . Cardiac and mediastinal silhouettes are stable . The lungs are clear . There is no pleural effusion or pneumothorax evident . There is a right - sided PICC line with tip apparent in the mid right subclavian vein .
    OUTPUT:
    
Right - sided PICC line with tip in the mid right subclavian vein . Per last imaging , tip was positioned in the distal superior vena cava and this thus represents a change . No record of interval intentional draw back of PICC .