Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left chest tube remains in place . Small left pleural effusion is decreased since ___ . The lungs are otherwise clear although lung volumes are low . Heart size is normal . The mediastinal and hilar contours are stable . There is no pneumothorax . There is retained barium in the colon .
    OUTPUT:
    
1 . Left pleural drain in place with decrease small left pleural effusion . 2 . Low lung volumes . No pneumothorax .