近年来研究资料表明肺结核常并发肺癌，多数人认为系结核杆菌长期刺激所致。目前我国有肺结核病人６００多万［１］，每年死于结核病症２５万人之多，这是个十分严峻的社会问题。结核杆菌可在体内外多种因素作用下被诱导为Ｌ型，而Ｌ型不仅可使炎症慢性化、迁延不愈，还与... In recent years, studies have shown that tuberculosis is often complicated by lung cancer, and most people think that it is caused by long-term stimulation of Mycobacterium tuberculosis. At present, there are more than 6 million pulmonary tuberculosis patients in China [1], and die of as many as 250,000 tuberculosis cases every year. This is a very serious social problem. Mycobacterium tuberculosis can be induced into L-type under the action of many factors in vivo and in vitro. L-type can not only make chronic inflammation persistent, but also delay the healing of inflammation;