发病情况据统计,颅咽管瘤(Craniopharyngioma)的发病率约占颅内肿瘤的4～7%,以10～20岁时最为多见。据Johnston(1962)报告,此瘤约占儿童和少年颅内肿瘤的50%。蝶鞍内颅咽管瘤约占蝶鞍内各种肿瘤的1/3。发生原因颅咽管瘤是胚胎发生时期产生的疾病。当胚胎三周时,外胚叶首端腹侧的一部分上皮向内凹陷生 The incidence According to statistics, the incidence of craniopharyngioma (Craniopharyngioma) accounts for about 4 ~ 7% of intracranial tumors, the most common in 10 to 20 years of age. According to Johnston (1962), this tumor accounts for about 50% of children and adolescent intracranial tumors. Sella craniopharyngiomas within the sella about a variety of tumors 1/3. Causes craniopharyngiomas are diseases that occur during embryogenesis. When the embryo is three weeks old, a portion of the epithelium on the ventral side of the head end of the ectoderm is indented inward