ESPE Abstracts

Background: Leydig-cell tumours in children are rare, comprising only 4 to 9% of all primary testis tumours in prepubertal males. These boys present with isosexual precocious pseudopuberty characterized by increased testosterone and low gonadotropin levels. We describe two cases and will discuss differential diagnosis and pathogenesis.Case 1: C. was first referred at 8 years old for pubertal development with accelerated growth since 4 years of age. His v...