Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two AP views of the chest were obtained . Cardiomediastinal and hilar contours are stable . Again seen is a left lower lobe and lingula opacity in which is stable to slightly increased since the prior study . There may be a small left pleural effusion . There is no right pleural effusion , and the right lung is clear . There is no pneumothorax .
    OUTPUT:
    
Stable to slight worsening of left lower lobe and lingular opacity with possible small left pleural effusion .