Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear bilaterally with no opacities , suspicious for lesion or mass . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is stable and within normal limits . The pleural surfaces are unremarkable . No adenopathy is appreciated .
    OUTPUT:
    
No evidence of infection or malignancy .