Chlorine-induced extensive tracheobronchial necrosis concomitantly benzene-induced pancytopenia presented with severe pneumonia.

We report a case of 25-year-old woman with severe tracheobronchial necrosis caused by chlorine released from a mixture household cleaning agents. She subsequently exposed benzene while she was fixing the seats with benzene containing gum. The case was found interesting with its history, delayed diagnosis, bronchoscopic features, and fatal outcome. We presented its bronchoscopic and pathological images which has not been shown in the literature up to date.