目的讨论外伤性后颅凹血肿的诊断和治疗。
Objective to discuss the diagnostic and therapeutic principle of traumatic posterior skull fossa hematomas.
后颅凹肿瘤即幕下肿瘤，是位于小脑蒂以下的肿瘤。
The skull concave tumor is under the curtain the tumor, is located below the cerebellum peduncle the tumor.
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。
CT combined with MRI, most common tumors in the midline region of children's posterior cranial fossa could be diagnosed accurately.
所有病例根据手术切除范围、术后照射范围大小以及后颅凹照射剂量的不同，分三组进行1、3、5年生存率及预后因素的分析。
The cases were divided into three groups according to resection scope, radiation range and radiation dose of Posterior Fossa. Each group was analysed with 1, 3, 5 year survival rates and prognostic.
所有病例根据手术切除范围、术后照射范围大小以及后颅凹照射剂量的不同，分三组进行1、3、5年生存率及预后因素的分析。
The cases were divided into three groups according to resection scope, radiation range and radiation dose of Posterior Fossa. Each group was analysed with 1, 3, 5 year survival rates and prognostic.
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