Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are unremarkable . The lungs are clear without evidence of focal consolidations . There is no pleural effusion or pneumothorax . No subdiaphragmatic free air identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality identified . No subdiaphragmatic free air identified .