Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . Mediastinal and hilar contours are normal . Pulmonary vasculature is not engorged . Lungs are clear . No pleural effusion or pneumothorax is detected . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .