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Chernobyl necklace is a term applied to the horizontal scar left on the base of the neck after a surgery to remove a thyroid cancer caused by fallout from a nuclear accident. The scar has come to be seen as one of the most graphic demonstrations of the impact of the Chernobyl disaster. The term takes its name from the increased rate of thyroid cancer after the Chernobyl disaster. The scar has also been referred as the Belarus necklace or the Belarusian Necklace, in reference to the large number of thyroid cancer occurrences in the nation caused by the nuclear fallout from neighboring Ukraine. The use of the word necklace indicates its visual resemblance to the horizontal scar around the neck, but also contrasts the negative connotations of the scar with the beauty of an actual necklace. == Cause == Iodine is required by higher animals to synthesize thyroid hormones, which contain the element. Because of this function, radioisotopes of iodine are concentrated in the thyroid gland along with nonradioactive iodine. In the case of a nuclear accident, the radioactive iodine-131 (I-131), which has a high fission product yield, is released into the environment. I-131 concentrates in the thyroid, and may cause cancer. Treatment of thyroid cancer may require surgery. The surgery may leave the patient with one or two horizontal scars at the base of the neck, dubbed the Chernobyl necklace.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chernobyl necklace」の詳細全文を読む スポンサード リンク
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