Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided chest tube remains in place . Extensive left upper and lower lobe airspace opacification corresponds to the extensive abnormality seen on recent chest CT , including a left lower lobe mass and multifocal consolidations . The right lung remains relatively clear . There is no pneumothorax . A small to moderate left pleural effusions has slightly decreased . A tiny right pleural effusion is unchanged .
    OUTPUT:
    
Slightly decreased moderate left pleural effusion .