Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent exaggerated elevation of the right hemidiaphragm . The lungs are clear . The cardiomediastinal silhouette and hilar contours are unremarkable . Right - sided Port - A - Cath terminates in the right atrium . Surgical clips are noted within the abdomen .
    OUTPUT:
    
No evidence of acute intrathoracic process .