“…Biochemically, low free thyroxine (T 4 ) is combined with raised levels of thyroid stimulating hormone (TSH), prolactin and oestradiol. Typically, luteinising hormone-releasing hormone (LHRH) stimulation shows an FSH-dominated prepubertal response with suppressed luteinising hormone (LH), confirming gonadotropin-releasing hormone (GnRH)-independent precocious pseudopuberty (2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22). Most cases in the literature are secondary to autoimmune thyroid disease but there are some case reports where the syndrome is secondary to unrecognised congenital hypothyroidism (5,10,12).…”