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What's the best diagnosis for tsh 0.01, t3 (liothyronine) 12.9 and t4 292? no previous problems with thyroid but have had breast cancer

3 doctor answers6 doctors weighed in
Dr. Hanriet Minasian
Internal Medicine 18 years experience
Hyperthyroidism: You have hyperthyroidism, which may have been partially caused by radiation to the chest for treatment of your breast cancer. You should undergo a thyroid ultrasound and be checked for thyroid antibodies. After verifying your thyroid results, you should be treated with Methimazole to slow down your thyroid.
Dr. Andrew Turrisi
Radiation Oncology 47 years experience
Radiotherapy to the head and neck can cause HYPOthyroidism, and may be implicated in thyroid cancer, but there is no theoretic pathway for it to cause excess (HYPERthyroidism). We commonly put patients on Synthroid even without changes, but a rising TSH point to the need to do this even if the T-3, T-4 are normal.
Jan 29, 2013
Dr. Aaron Segal
Family Medicine 19 years experience
Hyperthyroidism: This sounds like a classic hyperthyroidism (overactive thyroid). Most commonly caused by autoimmune syndromes such as grave's disease or thyroiditis, hyperthyroidism always requires evaluation, treatment, and monitoring. Your family doctor should be able to walk you through this process, and may consult an endocrinologist along the way.
Dr. Samuel Freedman
Pediatrics 9 years experience
Hyperthyroidism: Tsh is the most sensitive test of thyroid function. Low TSH indicates thyroid hormone excess. An endocrinologist is best for treatment. P.S. Are you sure T4 was 292 and not 29.2?

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Last updated Jan 19, 2017

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