Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate left pleural effusion and left lower lung volume loss reflected by increased retrocardiac density has minimally worsened since ___ . Heart size , mediastinal and hilar contours are unchanged . Right lung is clear .
    OUTPUT:
    
Since ___ moderate left pleural effusion and left lower lung atelectasis has minimally worsened .