Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to most recent chest radiograph , but decreased left lung volume is stable . No mild interstitial edema is unchanged . The moderate left pleural effusion is unchanged . Left basilar atelectasis is unchanged . The right lung is clear with normal pleural surfaces . The mediastinal contours are stable .
    OUTPUT:
    
Unchanged moderate left pleural effusion and atelectasis .