Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate complete opacification of the right hemithorax with volume loss . This represents worsening opacification since previous exam . There is a small pleural effusion on the left along with some left - sided plate atelectasis . Pulmonary nodules seen on chest CT can also be seen in the left lung again .
    OUTPUT:
    
Progression of opacification of the right hemithorax in a patient with metastatic non - small cell lung cancer .