13 yr female has high level of TSH, T4, T3 in thyroid function test with negative imaging on the head and chest
CT scan on head are negative, and also x ray on the chest are negative. It means that no tumor on hypothalamus and pituitary and as well as no paraneoplastic syndrome
Check these 3: 1- RAIU 2- Antibodies 3- thyroid hormone rezistance syndrom Also think exogenous uptake for loose weight or psycosis