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Date of last update: 10/17/2017.

Forum Name: Endocrinology Topics

Question: Thyroid Problems

 drowsy_dragon - Mon May 03, 2004 9:48 pm

I am a 31 year old female having Thyroid problems. My Doctor tells me that my TSH is low and that my Free T4 is low, My Free T3 is normal. I have seen an Internal medience docotor as well as a Endocrilogist. Nobody can tell me anything. I had a Thyroid uptake Scan which said I had Hyperthyroidism with Graves dieases and a normal Thyroid ultra-sound. My Symptoms are clinical of Hypothyroidism, ie. weight gain, fatigue, hair loss, memory problems, no sexual desire. I am currently Taking Topamax for migraines and I wonder if that may be causing some of my thyroid problems? What do you think?
 Dr. Russell M - Wed May 12, 2004 11:36 am

User avatar Hi!

In a severely ill hypothyroid patient the TSH and free T4 may be low. So also in secondary hypothyroidism due to hypothalamus/pituitary dysfunction TSH assay is of little use, and remains low with free T4.

Thyroid uptake scans are not useful in hypothyroidism, and they only serve to assess the anatomy and function of the thyroid gland; and for the scan to provide us with information, the gland should have some level of functioning, which may not be there at all in cases of severe disease.

Hope this helps.


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