I am a 10+ yr survivor of Stage II papillary thyroid cancer. I had a near total thyroidectomy followed by ablation. Have always taken synthroid for suppression of TSH and my TSH level has always been undetectable. This week my TSH came back at 2.45. I know my synthroid must be too low but does this mean there is a possiblity that the cancer has returned? I can't see my dr for a week; they sent my lab results to my home address. Any information would be appreciated.
No - this means the synthroid dose or the absorption of it is not optimal. Thyroglobulin blood tests and neck ultrasound are the mainstays for determining whether the cancer is present. A higher TSH may increase the risk of cancer return, but a high TSH is not a sign of cancer return.
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