Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged and within normal limits . The pulmonary vascularity is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .