Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right - sided hemodialysis catheter that terminates in the right atrium . The right hilum appears prominent and comparison should be made with prior studies . Otherwise the cardiopulmonary silhouette is normal in the pleura is unremarkable .
    OUTPUT:
    
Right hilar prominence of unclear clinical significance . Comparison should be made with prior studies . Otherwise unremarkable chest x-ray .