Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a large right lung mass and collapsed right middle lobe , as seen on recent CT and without significant interval change . The paratracheal component of mediastinal adenopathy is increased . Narrowing of the left main bronchus by subcarinal lymph nodes has probably increased since the beginning of ___ . There is no clear focal opacity suggestive of pneumonia . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Right lung mass and collapsed right middle lobe are not significantly changed . No opacity concerning for pneumonia is identified . 2 . Extensive mediastinal adenopathy may have increased in the right lower paratracheal station and in the subcarinal , narrowing the left main bronchus .