Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation is limited by moderate - to - severe S - shaped scoliosis . The spine is otherwise not adequately assessed on this study . Left chest wall pacemaker leads terminate in the right atrium and right ventricle . There is a prosthetic aortic valve . The heart is moderately enlarged . The aorta is tortuous . There is again elevation of the right hemidiaphragm . There is no focal airspace opacity to suggest pneumonia . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Chronic elevation of the right hemidiaphragm , but no acute cardiopulmonary abnormality .