Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Positioning of right - sided PICC line is unchanged , again in the upper right atrium appearing as though it has not yet been pulled back . Slight elevation of left hemidiaphragm is not changed and the lungs remain clear and heart and mediastinal contour stable .
    OUTPUT:
    
Right - sided PICC line tip remains in upper right atrium in unchanged position and could be pulled back approximately 2 cm .