Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear and well inflated bilaterally with no areas of focal consolidation , masses , lesions , or pleural effusions . There is no pneumothorax . The cardiomediastinal silhouette is normal . The pleural surfaces are unremarkable .
    OUTPUT:
    
Normal chest x-ray . No evidence of infection or malignancy .