Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . The lungs are clear . Cardiomediastinal silhouette is within normal limits . Right - sided hemodialysis central catheter is seen , slightly retracted when compared to prior with distal tip within the right atrium but slightly more proximal when compared to prior . Right upper extremity vascular stent is partially visualized . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
Right - sided central line seen with distal tip in the right atrium but slightly more proximal in location when compared to prior exam .