Table 2: Prevalence of clinical signs in pediatric and adolescent patients with Klinefelter’s syndrome.

Prepubertal ( )Pubertal ( )

Neuro-developmental disorders8 (44.4%)14 (53.8%)
Small testes3 (16.7%)20 (76.9%)
Cryptorchidism10 (55.5%)6 (23.0%)
Gynecomastia0 (0%)11 (42.3%)
Small penis3 (16.7%)3 (11.5%)
Prenatal diagnosis4 (22.2%)0 (0%)
Pie bot1 (5.5%)0 (0%)
Varicocele3 (11.5%)3 (11.5%)
Dysmorphisms1 (3.8%)1 (3.8%)