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How does a thyroid scan diagnose colloid thyroid nodules?

A thyroid scan is a way for your doctor to see the shape of your thyroid. Your doctor will inject a radioactive isotope into a vein of your arm. This isotope then travels through the bloodstream to the thyroid. A camera then takes a photo of your thyroid, which is more visible than usual due to the isotope.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.