Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . ETT terminates approximately 4 cm from the carina . An enteric tube terminates in the upper stomach . There is approximately 12 mm separation of the AC joint on the right .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . ET tube 4 cm from the carina . 3 . Right AC joint separation of with least 12 mm .