Usefulness of repeated recombinant human thyrotropin-stimulated thyroglobulin test in the post-surgical follow-up of very low-risk patients with differentiated thyroid carcinoma.

Our results suggest that rhTSH Tg test may be helpful in very low-risk patients, given its ability to differentiate those who may be considered "free of disease" from those who require further investigation and treatment. Repeated rhTSH Tg tests may be indicated only in patients with detectable serum Tg at prior stimulation testing.