Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are appropriate . A subtle opacity in the posterior aspect of the right lower lobe is concerning for pneumonia . There is no pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiomediastinal and hilar contours are within normal limits . No acute osseous abnormality is detected .
    OUTPUT:
    
Subtle opacity in the posterior right lower lobe concerning for pneumonia .