[An ovarian tumor with structural gonadoblastoma, dysgerminoma and choriocarcinoma].

A 14 1/2-year old girl with menometrorrhagia followed by amenorrhea and abdominal pain had a pelvic resistance with limited mobility. Histology of a left ovarian tumour showed gonadoblastoma turning to dysgerminoma and associated with choriocarcinoma (M-9073/1, M-9060/3, M-90101/3). Genuine ovarian tissue was hypoplastic on both sides. In the right ovary, there were additional thecalutein cysts. The patient's karyotype was 46 XX. She has been without any relapse 2 1/2 years after chemotherapy and actinotherapy.