Learning Objectives: After reading this article, the participant should be able to: Define the general guidelines and indications for the use of stereotactic radiosurgery. Describe the goals, indications, and potential benefits of the use of stereotactic radiosurgery in the treatment of acoustic neuromas, arteriovenous malformations, meningiomas, pituitary tumors, and brain metastases. Identify the outcomes of these lesions when stereotactic radiosurgery is used. Identify the outcomes error using stereotactic radiosurgery on the above stated lesions.