Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right middle lobe and lower lobe collapse accompanied with small - to - moderate pleural effusion has recurred since ___ . Left lung is unremarkable and there is minimal cardiac congestion , unchanged . There is no pneumothorax . Stable aorta is tortuous and possibly enlarged . A right jugular line ends at cavoatrial junction .
    OUTPUT:
    
Right lower lung atelectasis and small - to - moderate pleural effusion has recurred since ___ .