Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Left chest wall pacer again seen with tips in the right atrium and right ventricle . The lungs remain clear without consolidation or pulmonary vascular congestion . Cardiac silhouette is slightly enlarged but unchanged in configuration . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .