Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . The cardiomediastinal silhouette is unremarkable . There is no pleural effusion , pneumothorax , pulmonary edema , or focal consolidation . No subdiaphragmatic free air is identified .
    OUTPUT:
    
No acute cardiopulmonary process . No subdiaphragmatic free air .