[Case of tuberculous bronchial stenosis followed-up by spirogram and successfully treated with a Dumon stent].

A 47-year-old man visited his family doctor because of chronic productive cough. Though there were no abnormal chest X-ray film findings, he was diagnosed as tuberculosis on the basis of a sputum examination. Therefore, he was introduced to our hospital and as tracheobronchial tuberculosis was diagnosed by the bronchofiberscopic findings, showing ulceration with a white nodules from the lower part of trachea to the left main bronchus. By treatment, the ulcer change was improved, but the left main bronchus narrowed to pinhole size. Furthermore, the flow-volume curve became worse, and stridor appeared. We inserted Dumon stent in the left main bronchus 4 months later. As a result, his symptoms and flow-volume curve were improved, and we removed the stent 4 years and 6 months later. In this valuable case, we could observe the progress of the post-tuberculosis bronchial stenosis respiratory physiologically.