枕骨大孔区肿瘤，多数是良性肿瘤。

Tumors of the foramen magnum are mostly benign.

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目的：探讨治疗枕骨大孔区畸形的手术方法。

Objective: To explore the operation modalities for anomalies of the foramen magnum region (AKMR).

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结论MRI对于颈静脉孔区肿瘤的诊断具有重要价值。

Conclusion MRI is of very important diagnostic values in detecting the tumors in JFA.

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