Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette , with calcification of the aortic knob . Again seen is a 3 .1 cm mass in the left mid lung , which corresponds to a mass seen on prior CT and is unchanged . The opacity in the lingula or left lower lobe inferior to this mass is improved compared to ___ . No new focal consolidation to suggest bacterial pneumonia is identified . There is no pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . No new focal consolidation to suggest bacterial pneumonia . Improved lingular / left lower lobe opacity . 2 . Unchanged 3 .1 cm mass in the left mid lung .