Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Lungs are clear . Elevation of the right hemidiaphragm remains chronic . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .