Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is trace pneumopericardium and faint lucencies in the region of the gastroesophageal junction , likely representing residual pneumomediastinum . There has been interval improvement in aeration of the right lung base . No focal consolidation . Heart size is normal .
    OUTPUT:
    
Trace residual pneumomediastinum and pneumopericardium .