Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior exam , the right lung masses have increased in size . For example , the central superior mass previously measured 5 .1 cm . It now measures 6 .6 cm . A large mass at the right base is also increased in size . It previously measured 7 .1 cm and now measures ___ .8 cm . A third mass in the right mid lung zone appears stable . The left lung is essentially clear . There is no left pleural effusion . A right pleural effusion can not be assessed for due to the large mass . There is no pneumothorax . The cardiomediastinal silhouette is unchanged and normal .
    OUTPUT:
    
Increase in size of multiple right lung masses , consistent with metastatic disease progression of known non-small cell lung cancer . Please refer to same day CT chest for additional details .