Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are overinflated with biapical hyperlucency , increased anteroposterior diameter , and widening of the retrosternal clear space . Heart size is at the upper limits of normal . The aorta is moderately tortuous and calcified . There are no pleural effusions or pneumothorax . No displaced rib fractures are identified . Thoracic vertebral height is maintained .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No displaced rib fractures . If the patient has focal pain , dedicated rib series can be ordered .