Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . Left chest wall pacer again noted with leads extending into the right heart . Abandoned pacer leads project over the right axilla and right chest . The heart is top normal in size . Lung volumes are low , though no focal consolidation , effusion , or pneumothorax seen . Mediastinal and hilar contours appear normal . Bony structures are intact .
    OUTPUT:
    
Top normal heart size . Otherwise , unremarkable .