Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been progression of the opacity of the left hemi thorax with minimal aerated lung seen at the apex . Trachea if anything is deviated to the left suggesting component of volume loss on the left . Stent is identified within the left mainstem bronchus . Right - sided pulmonary nodules are compatible with known metastases . Cardiac silhouette can not be assessed . No acute osseous abnormalities .
    OUTPUT:
    
Progression of the opacity in the left hemi thorax due to combination of pleural effusion , atelectasis , and underlying malignancy as well . Minimal residual aerated left lung at the apex .