Chernobyl-related thyroid cancer
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On the basis of the linear no-threshold theory (LNT), the Chernobyl accident (CA) was predicted to result in a considerable increase in radiation-induced cancer among general public. In fact, there has been no cancer increase proven to be a consequence of the radiation exposure after CA except for thyroid carcinoma (TC) in people exposed at a young age. Appearance of radiogenic TCs after the accident is not denied here, but their number has been overestimated due to the following mechanisms. Prior to the accident, the registered incidence of pediatric TCs was lower in the former Soviet Union (SU) than in other developed countries apparently due to differences in diagnostic quality and coverage of the population by medical checkups. For example, in the northern provinces of Ukraine the incidence was 0.1, Belarus—0.3, Norway—1.4, Canada—1.6 per million per year [1, 2]. Early cases of pediatric TC after the accident were generally described as poorly differentiated, aggressive, invasive...
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The author declares that he has no conflict of interest.
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