Germ cell tumors are composed of different tumor types derived from the primitive germ cells of the embryonic gonad
Second largest group of ovarian neoplasms after the surface epithelial tumors
Age: Infancy to old age, but seen more frequently from 1st to 6th
In children and adolescents, 60% of tumors are germ cell tumors and 1/3rd are malignant.
In adults 95% of germ cell tumors are benign and contain mostly mature cystic teratomas
Hypothetical model of histogenesis of germ cell tumors proposed by Teilum
Reference
Aleksander Talerman, Russell Vang. Germ cell tumors of the ovary. In:Blausteins Pathology of the female genital tract by Robert J.Kurman, Lora Hedrick Ellenson, Brigitte M.Ronnett. Sixth edition. 847-908