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Chemicals Used During Medical Imaging Tests May Damage Thyroid
San Francisco Chronicle

Chemicals used to enhance pictures obtained from medical imaging tests may lead to overactive or underactive thyroid glands, a study showed. Patients injected with contrast material were about twice as likely as those who didn’t get the chemical to develop hyperthyroidism, when the gland produces too much thyroid hormone and can cause rapid or irregular heart rates, according to a study today in the Archives of Internal Medicine. Results also showed an increased risk for hypothyroidism.

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