Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . The lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities identified . Clips are seen projecting over the left upper quadrant of the abdomen . No subdiaphragmatic free air is identified , though assessment is limited on this supine study .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air identified , though assessment is limited on this supine study . Consider upright or left lateral decubitus AP views of the abdomen for further assessment .