Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear bilaterally with no pleural effusion , masses , lesion , or pneumothorax . The cardiomediastinal silhouette is within normal limits . Pleural surfaces are unremarkable . Cervical fixation plate is again visualized with no obvious hardware complication .
    OUTPUT:
    
No evidence of malignancy or infection .