[Analysis of 27 patients with lung cancer misdiagnosed as tuberculosis].

Because lung cancer is similar to tuberculosis not only in clinical symptoms but also in X-ray manifestation, it is occasionally misdiagnosed. Currently, as the incidence of tuberculosis in the elders tends to increase and lung cancer is not rare in the youth patient's age is no more a good reference in differential diagnosis. Accurate diagnosis should be based, besides X-ray examination, on sputum cytology, bronchoscopy and biopsy.