Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is borderline in size . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . The right hemidiaphragm is mild to moderately elevated . The lungs appear clear . Mild degenerative changes affect the mid to lower thoracic spine .
    OUTPUT:
    
Elevated right hemidiaphragm . No evidence of acute cardiopulmonary disease .