Regional Childhood Ovarian Germ Cell Tumor by Toronto Guidelines v2

**Semantic type:** Neoplastic Process

**Definition:** Tumor involves one or both ovaries with pelvic extension and/or spread to the peritoneum outside the pelvis and/or retroperitoneal lymph nodes. (Childhood cancer staging for population registries according to the Toronto Childhood Cancer Stage Guidelines - Version 2. Cancer Council Queensland and Cancer Australia: Brisbane, Australia; 2021.)

**Synonyms:** - Regional Pediatric Ovarian Germ Cell Tumor by Toronto Guidelines v2