Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to prior , there is improvement of pulmonary edema . Otherwise there is no significant change . Lung volumes continue to be low . Upper lobes are clear . Again seen are enlarged heart and substantial left lower lobe collapse with bilateral pleural effusion . Right - sided central line is unchanged from prior . Left - sided pacer is not changed in position . No pneumothorax .
    OUTPUT:
    
Improvement of pulmonary edema . Left lower lobe atelectasis , not significantly changed from prior .