Thyroid uptake very low...Low TSH?

[C3444]

HELP!!!  Please let me know what you think.

Am I hypo? Hyper? or just plain crazy?  lol
My blood test shows low TSH .30 (.45 - 4.5), high TGAB 1600 (<30), high Tpo-ab 350 (<35)
My Uptake shows at 4hrs 6% and at 24hrs 3% (low!)
The nodule (2.5cm on ultrasound same day) did not show on the RAIU....I'm guessing it's cold?
What is going on? My TSH has been normal until this last time.
I thought if you were hyper the RAIU would show high uptake as well....am I right?
The nodule concerns me.   I am having a FNA this week to see what's going on with the nodule.
I know cancer is RARE, but it's still a little scary.  The nodule has more than doubled in size in six months.
Any thoughts please.

[C3444]

I thought cold nodules were more likely to be cancer, however there is still a big probablity it's nothing.  See below

http://www.endocrineweb.com/conditions/thyroid-cancer/thyroid-cancer

Far less than 1% of all thyroid nodules are malignant. A nodule that is cold on scan (shown in photo outlined in red and yellow) is more likely to be malignant. Nevertheless, the majority of these are benign as well.

[Super_sally888]

Hi,

your TSH is a bit on the low side.  And you have high antibodies.

I hope your doctor would also test for FT3 and FT4, if these are well within the reference range wouldn't worry too much about the TSH at 0.3.

Cold nodules are less likely to be cancer.  However seeing it is 2.5 cm and is growing, I believe they may want to remove it.  

Let us know how the FNA goes.