Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an opacity obscuring the right heart border concerning for a right middle lobe pneumonia . Focal opacity at the right costophrenic angle seen on prior chest x-ray is no longer visualized . There is bibasilar atelectasis . Hilar and cardiomediastinal silhouettes are stable . Left chest wall dual lead pacing device is again noted . Median sternotomy wires are intact . There is no pneumothorax .
    OUTPUT:
    
Right middle lobe pneumonia .