Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is persistent mild elevation of the right hemidiaphragm . The lungs are clear . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable and unremarkable , as are the hilar contours .
    OUTPUT:
    
No acute cardiopulmonary process .