New York: Researchers have found troubling signs that some doctors may be too quick to treat thyroid cancer patients with radioactive iodine, while others may be too slow.The drug helps people with advanced tumors, but it is unclear if it benefits others, their report says.By contrast, the downsides are clear: the therapy saps patients` energy and ups their risk of developing new cancers down the road, and it costs several thousand dollars."There are a lot of patients who are receiving iodine for what is considered low-risk tumors," said Dr. David J Sher, a cancer expert at Rush University Medical Center in Chicago, who was not involved in the new work."These patients generally have a superb prognosis without radioactive iodine," he told Reuters Health.
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