Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest shows stable bilateral apical scarring . Normal lung volumes with interval improvement of left lung base opacity but stable small left pleural effusion . Lung is otherwise clear . Cardiomediastinal silhouette is normal . There is no pneumothorax .
    OUTPUT:
    
Interval improvement of left lung base opacity with residual small left pleural effusion . Follow - up chest x-ray can be performed to confirm complete resolution of left pleural effusion .