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目的 探讨原发骶前肿瘤的诊断和手术治疗方法。方法 分析1983-1999年治疗的23例原发骶前肿瘤病人的临床资料。结合文献进行讨论。结果 23例中先天性肿瘤为最常见类型。肛门指诊结合B超和CT检查对于术前评估非常重要。手术路径以经骶尾入路和经会阴入路最为常见。结论 如无手术禁忌证，所有原发骶前肿瘤均应予手术切除，应根据肿瘤的具体情况选择恰当的手术路径，术中应避免神经血管损伤，并尽可能完整切除肿瘤。

Diagnosis and treatment of primary presacral tumor: analysis of 23 cases

Objective To discuss the diagnosis and therapy of primary presacral tumor. Methods 23 patients with primary presacral tumors underwent surgical treatment from 1983～1999 were studied retrospectively. Results In respect to pathological type, congenital tumor was the most frequent one in 23 patients. Digital examination together with B ultrasound and CT examination were quite important in determining the extent and degree of tumor invasion. As for operative ways, transacral and transperineal approach were the most common choices to detect the tumor. Conclusion Complete and enbloc resection is the principal method in treating presacral tumor, whether the lesions are beign or malignant. Choices of operative way should be made accordial to tumor condition. Keep nerves and blood vessels from being injuried during operation.