Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size , mediastinal , and hilar contours are normal . A small , rounded , dense nodule in the right middle lung is unchanged in size since ___ and is likely a granuloma . The lungs are otherwise clear without pleural effusion , focal consolidation , or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia .