Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior film , there is a new small left - sided pleural effusion with a left lower lobe consolidation . The right lung remains clear . The cardiomediastinal silhouette is difficult to evaluate secondary to pleural effusion and consolidation . The bones are intact .
    OUTPUT:
    
Consolidation ( likely pneumonia ) in the left lower lobe with associated small pleural effusion .