CONCLUSIONS: MRI is more sensitive than ct in detecting skull base bone destruction and retropharyngeal lymph node involvement of NPC.
结论：MRI对鼻咽癌颅底骨质破坏和咽后淋巴结的检出率高于CT。
Careful microsurgical surgery is required to avoid damage to the important structures locateded in the sella region. Reconstruction of the skull base is needed in patients with bone destruction.
细致的显微手术可以避免损伤鞍区的重要结构，对有颅底骨质破坏者需行颅底重建；
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