Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities . No free air is seen under the diaphragms .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No free air under the diaphragms .