[Granulosa cell tumors in children].

Juvenile granulosa cell tumours (JGCT) are rare. They may develop in ovarian or testicular tissue. In childhood a special histological type called juvenile granulosa cell tumour (JGCT) is seen. Four cases are described: Congenital JGCT in a child with sex chromosomal abnormity (45 XO/46 XdicYq) and tumour arising from immature testicular tissue, JGCT in the testis of a four month old boy, JGCT associated with a hypothalmic hamartoma in a 18 month-old girl, and JGCT in an eight year-old girl. In all cases the tumours were benign.