Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear bilaterally with no focal consolidation , masses , lesions , pleural effusion , or evidence of pneumothorax . Cardiomediastinal silhouette is within normal limits . Pleural surfaces are unremarkable .
    OUTPUT:
    
Normal chest x-ray . No evidence of infection . These findings were reported to Dr . ___ via phone at 4 :55 p .m . by ___ .