Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size appears borderline enlarged , unchanged . Mediastinal and hilar contours are stable . Lungs are clear without focal consolidation , pleural effusion or pneumothorax . Pulmonary vasculature is normal . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .