Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again , there is no evidence of primary or mediastinal abnormality . There is no radiographic evidence of adenopathy on this study ; please refer to recent CT of the chest dated ___ , which demonstrates left hilar findings . The lungs are well expanded bilaterally with no areas of focal consolidation , masses , lesions , pleural effusion or pneumothorax . The cardiomediastinal silhouette and hilar silhouettes are within normal limits . The pleural surfaces are unremarkable .
    OUTPUT:
    
No evidence of infection or malignancy .