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Thyroid Goiter
Answered by
Mark Lupo, M.D. - Thyroid Nodules, Thyroid Cancer, hyperthyroidism, hypothyroidism, Thyroid Ultrasound
Thyroid & Endocrine Center of Florida Sarasota - FL
Questions in the Thyroid forum are answered by Mark Lupo, MD. Topics covered include Goiter, Graves Disease, Hyperthyroid, Parathyroid/Calcium Problems, Thyroid Cancer, Thyroid Nodules/Cysts, Thyroiditis, Thyroid & Pregnancy, Thyroid Stimulating Hormone (TSH), Thyroid Tests, and Thyroid Surgery.

Thyroid Goiter

by Apolo, Nov 10, 2006 12:00AM
I have an enlarged thyroid (goiters) both sides are enlarged meaning entire thyroid enlarged.  Blood test show that I do not have hypo or hyper thyroidism but my TSH were low, borderline, but now below what is needed.  I see a thyroid specialist who has put me on 75mcg of synthroid per day.  

My question, won't this make my TSH lower?  Making me become hypo?

Thanks.

by Mark Lupo, M.D., Nov 11, 2006 12:00AM
I would not have started synthroid for goiter in a patient with an already low or borderline low TSH.  A low TSH is usually indicative of hyperthyroidism (not hypo).  Adding synthroid in this situation runs the risk of making you overtly hyperthyroid.
Member Comments (2)

by lumley801, Nov 10, 2006 12:00AM
What it sounds like is the specialist put you on that dose to shrink the goiter...
Just based on the numbers, if you have a low-normal TSH and you add, say, Synthroid, you will become more hypER, not hypO.

Did your doc test for antibodies?  Sometimes you can have a normal TSH and have symptoms (including goiter)...and when the doc checks for antibodies and they're positive, they may try thyroid hormone.

Just throwing some thoughts out there...
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