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Thyroid Diseases

Thyroid Antibodies

04/28/2009

Question:

Are the thyroid antibodies a type of ANA? I have positive ANA and was wondering if I should be checked for the thyroid antibodies. My rheumatologist has ruled out lupus and several other autoimmune diseases but has not tested for the thyroid antibodies.

Thank you.

Answer:

Antithyroid antibodies are not ANA, however, positive ANA have been commonly found in both types of thyroid autoimmune disorders (Graves' disease and Hashimoto's thyroiditis). Therefore, checking circulatory levels of antithyroid antibodies and thyroid function is reasonable in your case.

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Response by:

Marzieh  Salehi, MD Marzieh Salehi, MD
Assistant Professor of Endocrinology
College of Medicine
University of Cincinnati