What is childhood ovarian cancer?
Childhood ovarian tumors form in the tissues of the ovaries. Most ovarian tumors in children are not cancer. Ovarian cancer in children is very rare but occurs most often in females aged 15 to 19 years.
The ovaries are a pair of organs in the female reproductive system. They are in the pelvis, one on each side of the uterus (the hollow, pear-shaped organ where a fetus grows). Each ovary is about the size and shape of an almond in an adult woman. The ovaries make eggs and female hormones (chemicals that control the way certain cells or organs work).
Anatomy of the female reproductive system. The organs in the female reproductive system include the uterus, ovaries, fallopian tubes, cervix, and vagina. The uterus has a muscular outer layer called the myometrium and an inner lining called the endometrium.