OBJECTIVES:
* Determine the incidence and types of acute complications in patients undergoing stereotactic radiosurgery for brain tumors or other brain disorders.
* Determine the time frame for development and resolution of these complications in these patients.
* Determine the severity of these complications in these patients.
OUTLINE: Patients undergo stereotactic radiosurgery. Patients also complete questionnaires about the side effects they experience from radiosurgery. The questionnaires are completed at baseline and at 1 week, 1 month, and 2 months after radiosurgery.
PROJECTED ACCRUAL: A total of 94 patients will be accrued for this study.