and high‐grade gliomas, germinoma, and nongerminomatous germ cell tumors, and
craniopharyngiomas used in the Children's Oncology Group (COG) and the International
Society of Pediatric Oncology (SIOP). Treatment recommendations are provided in the
context of historical approaches regarding the roles of surgery, radiation, and chemotherapy.
Future research strategies for these tumors in both COG and SIOP are also discussed.