This course is designed for residents at the University of Florida, but others are welcome. However, an enrolment key is required. To obtain this key, please send an e-mail to course administrator with your name, age, occupation and university or hospital relation. You will receive an answer with the key. PLEASE NOTE: Email domains mailnesia and spamfree and similar reject mail from the course server. Do not use them. This course outlines the basics of radiosurgery and will cover its history, treatment planning, technological aspects, relevant pathology and its application in treatment.