Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to most recent chest x-ray the appearance of the left lower lobe consolidation appears slightly worse . Left upper lobe bronchiectasis with scarring and volume loss is again noted . Suggestion of a air - fluid level is best seen on the lateral view as on prior , potentially fluid with a large cystic cavity in the left lung . Right apical scarring is also noted . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Left lung base consolidation appears to have progressed since ___ worrisome for continued infection . Apparent air - fluid level which localizes to the region of large cavitation on prior CT scan , potentially with superimposed infection .