Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . No pleural effusion , pulmonary edema , or pneumothorax is present . The cardiomediastinal silhouette and pleural surface contours are normal . No free air beneath the diaphragm . No displaced fracture identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . No free air .