Ovarian germ cell tumors in children: a 20-year retrospective study in a single institution.

Ovarian germ cell tumors are rare in childhood. The goal of the study is to provide information that may help guide the evaluation and surgical management of future children with ovarian tumors.A retrospective review of patients with ovarian germ cell tumors between January 1990 and January 2010 was performed.137 patients were included with a median age of 9.5 years. Teratomas were found most frequently (mature: 78, immature: 6), followed by...