Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pacer lead is in unchanged position . The lungs are clear . No consolidation . The pulmonary vasculature and hila are normal . No pleural effusion or pneumothorax . The cardiac silhouette is enlarged but stable . The mediastinal silhouette is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .