Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An increasing lucency at the right lung base is thought to represent a growing subpulmonic pneumothorax . Multiple right - sided rib fractures are again demonstrated as is subcutaneous emphysema of the right chest wall , which is stable . Parenchymal opacities are consistent with contusion .
    OUTPUT:
    
Possible slightly increasing subpulmonic pneumothorax . Findings of possible free air discussed with ___ at 14 :49 via telephone by ___ immediately upon discovery of the findings . ___ repaged at 3 : 11 pm to discuss change in initial wet read with free air being unlikely , rather increasing subpulmonic pneumothorax .