Dr. Arvind Guru
General Surgeon
No FNAC is required. Thyroid scan can be done, though of not much use, in my opinion.
Reason :
There is no focus / nodule to sample. So what can/will FNAC assess ?
Even USG guided procedure needs something to target.
Regarding thyroid scan,
1) It is unlikely to show diffuse increased uptake, because the thyroid profile is normal.
2) Thyroid scan can suggest whether the whole enlarged lobe has decreased uptake, if it is a type of thyroiditis. However, even if it is, what good is a scan doing to do, since the treatment is observation till hypothyroidism develops.
3) Scan can pick up nodules but it CANNOT differentiate between Benign vs Malignant. Because 80% of ‘cold’ swellings are benign and 5% functioning or ‘warm’ swellings are malignant.
You have already done USG, hope it does not show any
Solid / Complex Nodules, MicroCalcifications, Increased Vascularity, Hypoechogenic nodules.
Just ensure that the USG and thyroid profile is repeated after 6-12 months.
Some people use LevoThyroxine to regress early stages of endemic goiter.
Dietary changes to avoid goitrogens and use iodised salt, to prevent progression.
Hope that helps
04.Jun, 06:41pm