Autonomous ovarian hyperfunction followed by gonadotrophin-dependent puberty in McCune-Albright syndrome.

A 5-year-old girl with the McCune-Albright syndrome presented with precocious puberty secondary to autonomously functioning ovarian cysts, followed by true central puberty. Progression from gonadotrophin-independent to gonadotrophin-dependent precocious puberty may occur from elevated sex steroid levels leading to the early maturation of the hypothalamic-pituitary axis.