Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Elevation of the right hemidiaphragm is again noted . The lungs are clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities , degenerative changes partially visualized at the right shoulder .
    OUTPUT:
    
No acute cardiopulmonary process . Persistent elevation of the right hemidiaphragm .