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目的探讨鼻咽癌颈部淋巴结转移的CT表现。方法回顾性分析经穿刺活检、放射治疗后CT片对比证实的212例鼻咽癌颈部淋巴结转移病例的CT表现。结果212例病例中,Ⅱ区144例,Ⅲ区8例,未见单独Ⅳ、Ⅴ、Ⅵ、Ⅶ区淋巴结转移病例,Ⅱ区合并其他区淋巴结转移者60例。单侧淋巴结转移74例,双侧淋巴结转移138例。转移淋巴结呈均匀强化64例,呈不均匀强化者148例。152例转移淋巴结均为圆形,42例转移淋巴结部分有融合,18例病例可见椭圆形转移淋巴结。结论鼻咽癌颈部淋巴结转移是自上向下发展的,这与鼻咽部淋巴引流方向有关。
Objective To investigate the CT findings of cervical lymph node metastasis of nasopharyngeal carcinoma. Methods The CT findings of 212 cases of cervical lymph node metastasis of nasopharyngeal carcinoma confirmed by CT scanning after biopsy and radiotherapy were analyzed retrospectively. Results In 212 cases, there were 144 cases in zone Ⅱ and 8 cases in zone Ⅲ. There were no cases of lymph node metastasis in stage Ⅳ, Ⅴ, Ⅵ and Ⅶ, and 60 cases in zone Ⅱ with lymph node metastasis in other zones. 74 cases of unilateral lymph node metastasis, 138 cases of bilateral lymph node metastasis. 64 cases of metastatic lymph nodes were uniformly enhanced, 148 cases were unevenly intensified. 152 cases of metastatic lymph nodes were round, 42 cases of lymph node metastasis, 18 cases of oval metastatic lymph nodes. Conclusion The cervical lymph node metastasis of nasopharyngeal carcinoma develops from top to bottom, which is related to the direction of nasopharyngeal lymphatic drainage.