Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild - to - moderate right pleural effusion associated with right lower lung atelectasis is unchanged since ___ . Retrocardiac density reflecting left lower lung atelectasis is minimally worsened . Mitral annulus calcification is evident . Descending thoracic aorta is generally large and moderate - to - severely calcified ; however , unchanged in appearance since ___ .
    OUTPUT:
    
Moderate right pleural effusion and associated right lower lung atelectasis is unchanged and minimal left lower lung atelectasis worsened since ___ .