Lymph node metastasis included lateral retropharyngeal lymph nodes 118 cases, neck upper-deep lymph nodes 140 cases.
咽后外侧组淋巴结转移118例，颈上深组淋巴结转移140例。
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。
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。
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