Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal silhouette and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . These findings were discussed with Dr . ___ at ___ via telephone by ___ 1 minute after initial discovery of the findings .