Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate - sized left pleural effusion with basal atelectasis is slightly improved since the prior study . A small right pleural effusion is present . Moderate cardiomegaly is unchanged since the prior study . The left chest wall pacer with leads in the expected position of the right atrium and right ventricle are seen . No focal pulmonary consolidation is seen . Mild pulmonary edema is present . Multiple thoracic wedge compression deformities are stable .
    OUTPUT:
    
1 . Moderate left pleural effusion with basilar atelectasis , slightly improved . Small right pleural effusion . 2 . Mild pulmonary edema .