[Risk of lung cancer in patients followed-up at tuberculosis dispensaries].

Within the last decade, the incidence of lung cancer in persons under dispensary observation and in particular in persons of groups III and VII of dispensary registration has been increasing annually. The increase was especially marked among male, elderly and senile persons exposed to harmful factors. Such persons should be examined in tuberculosis dispensaries at least twice a year. When malignant tumor is suspected overall examination is required prior to hospitalization with the most available and informative methods.