Especially in recent years, as the level of consciousness increases, the patients are referred to the health care facility in the slightest symptom. With early diagnosis, patients can be treated surgically without tumor surgery. Early diagnosis is also of great importance for Gamma Knife Perfexion treatment. This method can not be applied when a late diagnosis is a tumor. In this case, surgical intervention is being applied. Each brain tumor may not fit the Gamma Knife Perfexion.