1.Characteristics of craniopharyngioma: craniopharyngioma is a benign tumor and will not become malignant; it occurs in both children and adults, and is relatively common in children; craniopharyngioma grows in the central part of the base of the brain (saddle area); there are important neural structures in this area: optic nerve, pituitary gland, hypothalamus, etc. 3.Craniopharyngioma treatment: Surgery is needed; small tumors can be completely cut, but there is still a certain recurrence rate after complete cut; huge tumors are often difficult to be completely cut, and radiation therapy is needed to control the secretion and growth of tumor cyst wall after surgery.