Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A cardiac pacer has leads ending in the right atrium and right ventricle . Right upper lobe opacity is new since the prior chest radiograph of ___ . The right hilus appears similar to the prior chest radiograph . Left lower lobe atelectasis is again noted . There is no pleural effusion or pneumothorax . The cardiac and mediastinal contours are stable .
    OUTPUT:
    
New right upper lobe opacity could represent pneumonia in the correct clinical setting . Recommend followup with repeat chest radiographs in ___ weeks following completion of treatment to ensure resolution .