The data in a new report on thyroid cancer was stunning. From 2003 to 2007, story as many as 70 percent to 80 percent of women in the United States, France, Italy and Australia who were told they had thyroid cancer and who often had their thyroids removed actually had tumors that should have been left alone.
In South Korea, the trend is more pronounced — 90 percent of women with thyroid cancer probably did not require surgery.
The same trend applied to men, but to a lesser degree. In the United States and Australia, overdiagnosis accounted for about 45 percent of thyroid cancer in men over that four-year period. The rate in France, Italy and South Korea was about 70 percent, the report concluded.
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