Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The overlying trauma board limits evaluation . The cardiomediastinal and hilar contours are normal . The lung volumes are slightly low , but no consolidation , pleural effusion or pneumothorax is seen . No obvious displaced rib fracture seen . Please note that this study is limited for detecting subtle rib fracture .
    OUTPUT:
    
No acute cardiopulmonary pathology .