Stopped: low accrual
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Radiosurgery may be able to send x-rays directly to the tumor and cause less damage to normal tissue. Giving radiation therapy or radiosurgery after surgery may kill any remaining tumor cells. It is not yet known whether radiation therapy or radiosurgery is more effective than observation alone in treating benign meningioma. PURPOSE: This randomized phase III trial is studying radiation therapy or radiosurgery to see how well they work compared to observation alone in treating patients with newly diagnosed, benign meningioma that has been partially removed by surgery.
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Progression-free survival