Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal , and hilar contours are normal . Pulmonary vascularity is normal , and the lungs are clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities . Clips are noted within the upper abdomen compatible with prior cholecystectomy .
    OUTPUT:
    
No acute cardiopulmonary abnormality .