Adjuvant Hypofractionated Stereotactic Radiosurgery for Intermediate-risk Meningioma

This clinical trial tests the safety and effectiveness of hypofractionated stereotactic radiosurgery for treating patients who have undergone surgical resection for grade II meningiomas or grade I meningiomas that have come back after a period of improvement (recurrent). Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill tumor cells and shrink tumors. Stereotactic radiosurgery is a type of external radiation therapy that uses special equipment to position a patient and precisely deliver radiation to tumors in the body. Hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells and have fewer side effects. Hypofractionated stereotactic radiosurgery may be safe, tolerable, and effective in treating patients with grade II or recurrent grade I meningiomas after surgical resection.