Re: Hetrogeneous Thyroid nodule
Maybe they are just trying to see if it's a goiter rather than a nodule, and if you have thyroid disease?
I see you live in India, so the doctors may do things differently there. Here, a nodule that size, which would cause discomfort, would come out. Thyroid cancer (which I'm sure you do not have) does not show in blood work, so that's not what they are looking for, probably just thyroid disease.