Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The moderate left pleural effusion is unchanged . Bibasilar atelectasis . Indeterminate cardiac silhouette . Normal mediastinal and hilar contours . The right lung is clear . No pneumothorax . No evidence of pneumonia .
    OUTPUT:
    
1 . Unchanged moderate left pleural effusion . 2 . Bibasilar atelectasis .