Abstract
A 25-year-old man who sustained a chemical bomb injury in the Iran-Iraq war developed symptoms of shortness of breath, wheezing and cough for the last three years. On bronchofiberscopy an irregular zig-zag type of stenosis with multiple pseudodiverticulae formation was observed in the trachea and major bronchi. To our knowledge this delayed complication of burn injury due to a chemical bomb containing mustard gas has not been perviously reported.