Paediatricsmiddle twist
A 7-year-old girl is brought to a general practice because over six months she has developed underarm odour and a few dark hairs in the pubic area. Her mother is worried she is starting early. No breast tissue is palpable. Her height has tracked along the 50th centile since she was four and her weight is on the 60th. The clitoris is of normal size and there is no acne. A radiograph reports a skeletal age of 7 years 6 months. Which one of the following best explains her findings?