Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . The cardiomediastinal silhouette and pulmonary vasculature are unremarkable and unchanged since the prior examination . In comparison to the most recent examination , there is increased right infrahilar opacity , which in the appropriate clinical context , may represent pneumonia . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right lower lung pneumonia .