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1·Objective: To value the treatment method and outcome of 39 cases posterior cranial fossa hematoma.

目的：评价3 9例颅后窝血肿的治疗方法及效果。

2·Objective To summarize the operative experience of 15 cases with communicating tumors at the middle and posterior cranial fossa.

目的对15例骑跨中后颅窝底脑肿瘤的手术入路及治疗经验进行总结。

3·CT combined with MRI, most common tumors in the midline region of children's posterior cranial fossa could be diagnosed accurately.

CT和MRI联合检查，能对后颅凹多数常见肿瘤作出定位及定性诊断。

4·Methods 16 cases with giant communicating epidermoid cysts at the middle and posterior cranial fossa were operated on with microsurgical techniques.

方法16例跨中后颅窝的巨大表皮样囊肿采用显微外科手术切除。

5·ObjectiveTo improve the diagnosis and treatment of hemangioblastomas of the posterior cranial fossa, reduce the postoperative complications and mortality.

提高后颅窝血管网织细胞瘤的诊断及治疗水平，降低术后并发症和致残率及死亡率。

6·ObjectiveTo improve the diagnosis and treatment of hemangioblastomas of the posterior cranial fossa, reduce the postoperative complications and mortality.

【目的】提高后颅窝血管网织细胞瘤的诊断及治疗水平，降低术后并发症和致残率及死亡率。

7·ETV is an effective method of treating obstructive hydrocephalus caused by aqueduct stenosis and occupying lesions in posterior cranial fossa and midbrain.

对于多种原因引起的梗阻性脑积水患者ETV有很好的效果。

8·Objective To summarize the microsurgical experience in treating 16 cases with giant communicating epidermoid cysts at the middle and posterior cranial fossa.

目的总结跨中后颅窝底巨大表皮样囊肿显微手术治疗的经验。方法16例跨中后颅窝的巨大表皮样囊肿采用显微外科手术切除。

9·Conclusion ETV is an effective method treating obstructive hydrocephalus caused by aqueduct stenosis and occupying lesions in posterior cranial fossa and midbrain.

结论对于因导水管狭窄、后颅窝和中脑占位引起的梗阻性脑积水患者ETV有很好的效果。

10·During cerebral ventricle dilation, MRI supplement diagnosis rate is14.29% (in 13cases). During posterior cranial fossa abnormalities, MRI supplement diagnosis rate is87.50% (in 21cases).

其中磁共振诊断脑室扩张（脑积水）中合并其他异常占14.29%（13例），后颅窝扩大中合并其他异常占87.50%（21例）。

后颅窝

1·These tumors can remodel the temporal bone and extend into the posterior cranial fossa, possibly producing mass effect on the brainstem and cerebellum. Some tumors may extend below the skull base.

肿瘤可以重塑颞骨并且扩展入后颅窝，可能导致脑干和小脑受压，一些肿块可能会延伸到颅底下方。