Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate interval marked improvement of bilateral scattered opacities representing aspiration . Appearance of post esophagectomy pull - through is unchanged . There is no pneumothorax or large pleural effusion . Minimal left apical thickening is noted .
    OUTPUT:
    
Significant improvement of aspiration since one day prior .