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 normal . Lungs are clear . No pneumothorax or pleural effusion is present . No acute osseous abnormalities seen . No subdiaphragmatic free air is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .