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Table 1 Clinical and biological parameters of the patient during and after puberty

From: Idiopathic central precocious puberty in a Klinefelter patient: highlights on gonadotropin levels and pathophysiology

Age

8 years

9.5 years

9 years,

10 months

10 years,

4 months

11.5 years

20 years

LH (UI/l)

3.5

0.2

0.2

0.2

0.3

26

FSH (UI/l)

7.7

0.4

0.4

0.4

0.5

39.6

Testosterone (ng/ml)

4.35

0.3

0.2

0.2

0.3

1.16

Testicular diameter (mm)

35 × 25

35 × 20

35 × 20

35 × 20

35 × 20

25 × 12

Tanner staging

P2G3

P2G3

P2G3

P2G3

P3G3

P3G2

Bone age

9 years, 11 months

 

11 years, 6 months

11 years, 6 months

12 years, 3 months

 
  1. LH: luteinizing hormone; FSH: follicle stimulating hormone; UI: International units
  2. Period of Triptoreline treatment. Reference values: FSH: 1.1–9.9 UI/l, LH: 0.9–6.6 UI/l