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Radiation Therapy
Source: Central Nervous System Tumors Treatment (PDQ®)–Health Professional Version, National Cancer Institute.
Source updated: March 28, 2025 · Captured 2026-09-09.
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Context: Treatment of Recurrent CNS Tumors
Because there are no randomized trials, the role of repeat radiation after disease progression or the development of radiation-induced cancers is also ill defined. Interpretation is difficult because the literature is limited to small retrospective case series.[5] The decision must be made carefully because of the risk of neurocognitive deficits and radiation necrosis.
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