Son (8) has low TSH (0.619 - lab range 0.660 - 4.410). T4 is normal (1.44 - lab range 0.90 - 1.67). Doctor did not do T3 ( was doing lots of other labs and threw TSH in as we noticed son had a slightly enlarged thyroid). We are waiting three months to do a retake of TSH, T4 and T3.
We also found a lump on son's leg below the right knee a little over a week ago. It didn't go down so much as divided into two lumps and has pretty much stayed that way for a week. The lumps are soft and do not move. They're about quarter sized. Othropedic doc wants to wait a month and see what happens. I'm wondering:
(1) What does it mean to have an elarged thyroid, low TSH and normal T4? and
(2) Would the lumps have anything to do with the thyroid at this point?