近数十年来结核病的死亡率已显著下降。它更多侵犯老年人,而且并发其他呼吸系疾病者不少。随着原发肺癌发病率的升高(据WHO材料,每年增加5～7％),肺癌与结核兼有的病例,也不断增加。肺癌与结核的关系问题,久已引起医学家们的注意。例如为了发现一个肺癌或结核或两病兼有的病例,需要胸透多少人。在防治所登记病 Tuberculosis mortality has dropped significantly in recent decades. It violates the elderly more and has many other respiratory diseases. With the rising incidence of primary lung cancer (5 to 7% per year according to WHO materials), both cases of lung cancer and tuberculosis are also increasing. The relationship between lung cancer and tuberculosis has long attracted the attention of medical scientists. For example, in order to find a case of both lung cancer or tuberculosis or both, how many people need chest thorax. In the prevention and treatment of registered disease