<unk>  <unk>  is a neoplasm derived from<unk>  cells.<unk> s can be cancerous or benign.<unk>  cells normally occur inside the gonads (ovary and testis).<unk> s that originate outside the gonads may be birth defects resulting from errors during development of the embryo.
Germ cell tumor
Gonadoblastoma
Brown tumor
Ovarian germ cell tumors
Embryoma
Granulosa cell tumour
Neuroma
Endolymphatic sac tumor