pneumomediastinum is a possible acute complication of severe occupational asthma

occupational asthma has been reported  to  be the most  common  chronic respiratory occupational disease in many developed countries, and  as with other  occupational lung diseases, occupational asthma is potentially preventable. we report  the case of a 24-year-old baker who experienced pneumomediastinum as a consequence of workplace exposure. this is the first report of pneumomediastinum as an acute complication of occupational asthma, and it exemplarily shows that the lack of medical surveillance at the workplace may lead to an acute, although unusual, complication.