Adjuvant radiation therapy

Source: Childhood Medulloblastoma and Other Central Nervous System Embryonal Tumors Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: April 11, 2025 · Captured 2026-09-09.

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Context: Childhood Nonmedulloblastoma Embryonal Tumors / Treatment of Childhood Nonmedulloblastoma Embryonal Tumors / Treatment of children older than 3 years

After surgery, children with nonmedulloblastoma embryonal tumors usually receive treatment similar to that received by children with high-risk medulloblastoma.

Conventionally, patients are treated with radiation to the entire neuraxis with local boost radiation therapy, as given for medulloblastoma.[31] Local boost radiation therapy may be problematic because of the size of the tumor and its location in the cerebral cortex. Also, there is no definitive evidence that craniospinal radiation therapy is superior to radiation to the primary tumor site alone in children with nondisseminated lesions.[29-31]

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