Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC line ends at mid SVC . Left - sided pacer defibrillator with leads through the left transvenous approach is seen to end in the right atrium , right ventricle , and coronary sinus . Minimal right basal atelectasis is unchanged . There are no other lung opacities of concern . Top normal heart size , mediastinal and hilar contours are stable .
    OUTPUT:
    
Right PICC line ends at mid SVC . Small bibasilar atelectasis is unchanged .