Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Elevation of the right hemidiaphragm is unchanged since ___ . Heart size is normal with the demonstration of tortuous thoracic aorta . Hilar contours are normal . Mild right base atelectasis is improved . Lungs are otherwise clear . Pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . Elevation of the right hemidiaphragm , unchanged since ___ .