Central Hyperthyroidism due to Thyroid-Stimulating Hormone-Secreting Pituitary Microadenoma in an Adolescent Boy: Case Report and Review of the Literature

Table 1

Hormonal results.

Investigations	Level	Reference range
FT4 (pmol/L)	86.32	12–22
FT3 (pmol/L)	23.08	3.1–6.8
TSH (mUI/L)	8.25	0.27–4.2
Cortisol (nmol/L)	261.3	118.6–618
ACTH (pmol/L)	9.2	1.6–13.9
Testosterone (nmol/L)	12.94	12–29
LH (mUI/mL)	2.55	1.24–8.62
IGF-1 (ng/mL)	291	100–1000
Prolactin (ng/mL)	16.64	4.04–15.2

FT4: free T4; FT3: free T3; TSH: thyroid-stimulating hormone; ACTH: adrenocorticotropic hormone; LH: luteinizing hormone; IGF-1: insulin-like growth factor-1. Bold levels are out of the normal range.