Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral pulmonary opacities are again seen consistent with known pulmonary metastases , which are now subtly more conspicuous . Right pleural effusion appears similar to possibly slightly increased in extent . There is also slight increase in confluence of bibasilar opacities which may be due to worsening of metastatic disease , underlying consolidation not excluded . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Bilateral pulmonary opacities are again seen consistent with known pulmonary metastases , which are now subtly more conspicuous . Right pleural effusion appears similar to possibly slightly increased in extent . There is also slight increase in confluence of bibasilar opacities which may be due to worsening of metastatic disease , underlying consolidation not excluded .