Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left pigtail pleural drain has been removed . Left pleural effusion is smaller . Reticular opacity at the right base is unchanged . There is no pneumothorax . The heart is not enlarged . Mediastinal contours are normal .
    OUTPUT:
    
Left pleural effusion is smaller . Reticulated right basilar opacity is unchanged .