Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The single lead of a left chest wall generator has a different course compared to the most recent prior chest radiograph . The pacer wire previously extended linearly from the right atrium to the right ventricle but currently appears coiled predominantly to the right of midline . Heart size and cardiomediastinal contours are normal . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
The wire of a single lead left chest wall generator has migrated in position compared to ___ with retraction of the tip . Lateral radiograph recommended to confirm lead tip position . Correlate with pacemaker function .