Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Heart size is top - normal . Mediastinal contours are within limits . Lungs are clear without focal consolidation . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is demonstrated . No acute osseous is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .