Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Single atrial lead of the left chest wall generator has a similar course to prior and terminates in stable position . No wire fracture or rotation of generator pack is identified . The heart size and cardiomediastinal contours are normal . The lungs are clear . No focal consolidation , pleural effusion , or pneumothorax . The osseous structures are unremarkable . Right upper quadrant metallic surgical clips are unchanged .
    OUTPUT:
    
Stable position of single atrial pacer lead , based on single frontal view .