Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Lungs are clear and the pulmonary vasculature normal . No pleural effusion or pneumothorax is detected . There are no acute osseous abnormalities . Cholecystectomy clips are demonstrated in the right upper quadrant of the abdomen . There are mild degenerative changes in the lower thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .