材料与方法：对70例经手术及病理证实的小脑半球肿瘤CT表现进行回顾性分析总结。
Materials and Methods: The ct features of 70 cases with Cerebellar hemisphere tumors surgically and pathologically proved were retrospectively analysed.
获得后颅窝枕颈交界处肌肉、颅骨的正常解剖结构有关资料，为桥小脑角区肿瘤、小脑半球肿瘤的手术治疗提供更优化的手术入路。
Suboccipital retrosibmoidal craniotomy with replacement of bone flap and deep muscle incision, suture in turn were used in patients to improve the operative effect of posterior fossa tumor.
右椎动脉交叉充盈，小脑多个结节样肿瘤染色，尤其是在右侧小脑半球。
There is cross-filling of the right vertebral artery and multiple nodular areas of tumor blush (arrows) are seen in the cerebellum, especially in the right cerebellar hemisphere.
目的：提高小脑半球各肿瘤ct诊断的正确性。
Purpose: To improve CT diagnostic accuracy for cerebellar hemispheres tumors.
结果：肿瘤位于小脑半球8例，小脑蚓部5例，第四脑室10例。
Results: 8 cases located in cerebellar hemisphere, 5 cases in vermis, 10 cases in fourth ventricle.
结果：肿瘤位于小脑半球8例，小脑蚓部5例，第四脑室10例。
Results: 8 cases located in cerebellar hemisphere, 5 cases in vermis, 10 cases in fourth ventricle.
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