Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and tubes are unchanged in position as compared to chest radiograph completed at 08 : 52 . There has been minimal interval re-expansion of the left upper lobe , however there is still substantial atelectasis throughout the left lower and mid lung . A moderate left pleural effusion is now seen . The right layering pleural effusion is unchanged . Visualization of the heart is obscured by left lung atelectasis .
    OUTPUT:
    
1 . Improved aeration of left upper lobe , with considerable residual atelectasis of the left lower and mid lung . 2 . Stable right pleural effusion . Moderate left pleural effusion .