Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta remains tortuous , with the mediastinal and hilar contours otherwise unchanged . The pulmonary vascularity is normal . No pleural effusion or pneumothorax is present . Elevation of the left hemidiaphragm is chronic . No displaced rib fractures are identified , and no acute osseous abnormalities are detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .