Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Note is made of free air in the right upper quadrant , below the diaphragm . There is minimal left midlung opacity in the region of prior consolidation , likely related to scarring . No new focal consolidation or large pleural effusion is seen . Note is made of a coronary stent .
    OUTPUT:
    
Free air under the diaphragm in the right upper quadrant , consistent with recent surgery two days prior .