本科自1996年8月～1998年10月间,采用32Ｐ内放疗治疗难以手术切除的囊性颅咽管瘤7例,取得良好效果,现报道如下。1　资料与方法11　一般资料　本组7例,其中男5例,女2例。年龄9～56岁,平均26岁。全部病例均经活检病理证实。术前经ＣＴ或ＭＲ检查,瘤体体积按经验公式π/6(长×宽× Undergraduate from August 1996 to October 1998, the use of 32P internal radiation therapy in the treatment of difficult to resection of cystic craniopharyngiomas in 7 cases, and achieved good results, are reported below. 1 Materials and Methods 11 General Information This group of 7 cases, including 5 males and 2 females. Age 9 to 56 years old, average 26 years old. All cases were confirmed by biopsy and pathology. Before surgery by CT or MR examination, tumor volume according to the empirical formula π/6 (length × width × ×