Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . Mediastinal and hilar contours are unremarkable . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities detected . There is no subdiaphragmatic free air .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .