Among patients with secondary epilepsy, very few will be told that they have a rare intracranial tumor called hypothalamic malformation tumor, and the doctor will make a detailed explanation to the family for the diagnosis and treatment of this disease, but despite this, the patient and the family still do not fully understand due to the tension. It is not a real tumor, it will grow slowly with the development of human body like normal tissues, and will not increase in size after a certain degree, and it will rarely become malignant. The most common intracranial malformation tumors are those that occur in the hypothalamic region of the brain (see figure), and they are often diagnosed by the onset of epilepsy, diagnosed by imaging, and finally confirmed by pathology. Because of its organization and growth characteristics, the harm of hypothalamic malformation tumor itself does not necessarily affect life expectancy, but the epilepsy it causes brings unbearable pain to the patient and sometimes is fatal, so to control the seizures, the tissue must be removed, of course, because it is a surgery in the hypothalamic area, its risk and difficulty are relatively large, and it must be surgically treated by an experienced physician to achieve good results.