Thyroglobulin antibody 255μg/L after iodine 131 treatment indicates elevated thyroglobulin antibody, which may be normal, or it may be caused by abnormalities such as radiological thyroiditis or thyroid cancer in the presence of tumor tissue residue or metastasis.
The normal range of thyroglobulin is 5~40 μg/L, so 255 μg/L of thyroglobulin antibody after iodine 131 treatment indicates elevation.
It may be that the thyroid tissue is destroyed after iodine 131 treatment, leading to the elevation of thyroglobulin antibodies in the blood, and with the recovery of the patient’s thyroid function thyroglobulin antibodies can be gradually restored, which is a normal phenomenon.
Besides, thyroglobulin antibody is also used as an indicator to monitor the recurrence of thyroid cancer, which has high sensitivity and specificity for the recurrence of thyroid cancer.
Thyroglobulin antibodies can also be elevated if there are residual tumor tissues or metastatic foci after surgical treatment of thyroid cancer; radioactive thyroiditis may occur after iodine 131 treatment, leading to the elevation of thyroglobulin antibodies; the above cases are generally not normal.
If thyroglobulin antibodies are abnormal after iodine 131 treatment, you can go to the hospital and ask the doctor to make a judgment.