Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . No focal consolidation , pleural effusion , or pneumothorax is detected on this view . Heart size is top normal , which may be exaggerated by low lung volumes and positioning . Surgical clips project over the right upper quadrant .
    OUTPUT:
    
No acute findings on this single supine frontal chest radiograph .