In that small study, the researchers found that the presence of any detectable Tg, even levels less than 2 -- was strongly suggestive of recurrent or residual thyroid cancer.
Based on the findings -- which will likely be presented in a more specific journal article at some point -- it appears, however, that thyroid cancer survivors who have any measurable thyroglobulin warrant further investigation and observation.
More on Thyroid Cancer:
- Thyroid Cancer Risk Factors
- Thyroid Cancer Symptoms: A Look at the Signs and Symptoms of Thyroid Carcinoma
- Thyroid Cancer Diagnosis: A Look at the Procedures and Tests for Diagnosing Thyroid Carcinoma
- Thyroid Cancer Facts, and How to Do a Thyroid Neck Check
- Why Are More People Being Diagnosed with Thyroid Cancer?
Source: K Iyengar, et. al. "Utility of low concentrations of serum thyroglobulin in predicting residual or recurrent disease in patients treated for well-differentiated thyroid cancer" ENDO 2010 Abstracts, Abstract P1-568