[Epidemiologic and radiobiologic features of neoplasms in respiratory and gastrointestinal tracts among patients who had occupational contact with uranium].

Morbidity structure among workers engaged into main production of nuclear industry had prevailing lung cancer (1.93 per 1,000), gastric carcinoma (1.09) and colon cancer (0.72). The lung cancer patients demonstrated the highest concentrations of uranium in lung tissue (0.8313 g/g) and liver tissue (0.3548 g/g); those with gastric carcinoma and of reference group--in lung radix nodes (0.1855 and 0.3685 g/g respectively).