Incidence of Thyroid Cancer in Belarus

The incidence of thyroid cancer in Belarus Belarus is an area in the northern part of Ukraine, formerly part of the Soviet Union. In 1986, a serious accident involving the release of fire and a large amount of radioactive material occurred in the Chernobyl reactor. The Gomel region is located in the northern part of Chernobyl, and it is reported that the radioactivity level in the Gomel region was high after the collapse of the nuclear reactor on April 26, 1986. In the first few hours after the main area, feathers first flowed through the Gomel region. After releasing radiation, in Brest and Grodno area.

2 In 1989, the Committee of the Radiation Science Committee estimated the incidence of thyroid cancer in non-implanted residents of the four most contaminated residents (when the accident was 18 years old) in Belarus, Ukraine, and the Russian Federation Did. It is 0.25. The Committee pointed out that the uncertainty of this part is very large, at least 0.07 to 0.5. 3

Over the past several decades, the incidence of thyroid cancer has increased worldwide. In the US, the incidence of thyroid cancer - 4% of newly diagnosed cancer - increased from 4.9 per person in 1983 to 14.7 per 100 thousand in 2011, but the mortality rate of thyroid cancer remains low ( Approximately 0.5) 100 thousand people) (88) Thyroid papillary carcinoma accounts for more than 80% of all thyroid cancer, its invasiveness is low, and its prognosis is better than that of thyroid follicular carcinoma or undifferentiated thyroid carcinoma. Increasing thyroid cancer incidence worldwide may be due, at least in part, to improvements in screening and diagnostic activities. However, simultaneous introduction with the iodine enhancement program presumes possible contributions of an increase in iodine intake.

Thyroid cancer is unique to cancer. In fact, thyroid cells are unique among all cells of the human body. They are the only cells that can absorb iodine. Because thyroid cells require iodine to produce thyroid hormones, they absorb and concentrate blood from the blood. After thyroid is completely removed, radioactive iodine is administered to certain thyroid cancer patients known as "differentiated thyroid cancer". These differentiated thyroid cancers include the most common thyroid papillary, thyroid, and follicular thyroid cancers. If the patient has normal thyroid cells or the remaining thyroid cancer cells (and any thyroid cancer cells that retain this iodine absorption capacity), these cells absorb and concentrate radioactive iodine.