Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest radiograph demonstrates clear lungs without pleural effusion or pneumothorax . The cardiac silhouette is normal in size , the mediastinal contours are normal . There is no intraperitoneal free air . Surgical clips are noted in the upper quadrant .
    OUTPUT:
    
Normal chest , without intraperitoneal free air .