Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates a subtle right middle lobe opacity concerning for pneumonia . There is no pleural effusion . Cardiomediastinal and hilar contours are within normal limits . There is no pneumothorax . Osseous structures are unremarkable .
    OUTPUT:
    
Subtle right middle lobe opacity concerning for pneumonia . A follow up radiograph is recommended in ___ weeks following treatment to ensure resolution .