目的 研究侧脑室脑膜瘤临床特点及显微外科手术治疗的效果。方法 利用CT、MRI及脑血管造影明确肿瘤的诊断，16 例侧脑室脑膜瘤均采用显微外科手术摘除。结果 本组病例肿瘤全部切除，无手术死亡。结论 CT、MRI是诊断侧脑室脑膜瘤最可靠的方法，血管造影明确肿瘤的供血情况，选择合理的手术入路应用显微外科手术可达到肿瘤的全切除。

Objective: The object of this study was to analysis the therapeu-tic effects of microsurgical excision in cases with the large or giant cerebellopontine angle meningioma. Methods: We retro-spectively analyzed the 56 patients who suffered from the large or giant cerebellopontine angle meningioma and underwent the microsurgical therapy, for which the suboccipital-retrosigmoidal approach was adopted in 38 cases, the temporal-occipital cra-niotomy, presigmoidal approach in 6 cases, the temporal-occipi-tal craniotomy, inferotemporal tentorium cerebelli approach-ing cases, and the temporal-occipital craniotomy, supratentorial or infratentorial allied approach in 4 cases. Results: The tumors of 44 cases were all resected (Simpson 1, 11), with a total resection rate of 78.6%, and there was no operative mortality. After sur-gery, symptoms improved in 40 cases and remained unchanged in 10 cases. Among 54 cases, recrudescence was seen in 2 cases (3.7%) and being able to take care of themselves in 50 cases (92.6%) at 6 months through 6 years follow-up after surgery. Conclusion: A rationally selected surgical approach, a micro-scopic technology applied in the operation to appropriately treat and protect vein, nerve and brain stem, which can ideally excise the tumors, together can increase the survival ability of patients.

Background: Lymphangioma of the soft tissue is not uncommon. However, as far as the authors know, intraspinal lymphangioma is clinically rare and very few cases have been reported previously. Methods: Two patients who had backache and acratia of the lower limbs and difficulty in relieving themselves were examined by plain radiography and magnetic resonance imaging before surgery. Treatment consisted of the usual technique of surgical resection of the tumor microscopically. Histological examination of the resected material confirmed the diagnosis. Postoperative follow-up assessment was performed by magnetic resonance imaging. Results: Intraspinal lymphangioma is very rare clinically and its cause remains controversial. Magnetic resonance imaging can obtain precise position fixing, but it is hard to make preoperative qualitative determination. The most effective treatment of intraspinal lymphangioma is to excise it totally. Conclusions: The clinical appearance of intraspinal lymphangioma has no character. Magnetic resonance imaging is important in diagnosing it. The most effective treatment of intraspinal lymphangioma is to excise it totally. Further observation is recommended because of the possibility of local recurrence.

儿童颅脑枪弹伤为一种特殊类型的损伤，其诊断和处理都有特殊性[1]，国内文献极少报道。我科从1985～1997年共收治15例儿童颅脑枪弹伤，总结分析如下。