Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate clear lungs . The cardiomediastinal and hilar contours are normal . The previously seen adenopathy most pronounced in the right paratracheal region has improved . There is no pneumothorax or pleural effusion . Pleural surfaces are normal .
    OUTPUT:
    
No evidence of pneumonia . Improved hilar adenopathy .