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目的探讨ＭＲＩ对鼻咽癌的诊断价值。方法分析４５例经病理证实的鼻咽癌者的ＭＲＩ表现。采用Ｓｉｅｍｅｎｓ公司Ｉｍｐａｃｔ型超导磁共振成像仪行鼻咽部ＭＲＩ扫描。结果肿块突入鼻咽腔致咽隐窝变平、消失或两侧不对称３７例，为最常见表现；周围深部组织浸润３０例，其中腭帆提肌和腭帆张肌肿胀、脂肪间隙消失多见；伴颅底侵犯１４例，海绵窦侵犯５例；淋巴结转移１７例，脑内转移３例，球后受累３例。结论磁共振对显示鼻咽癌的侵犯范围、方式和程度有重大价值，是优良的诊断方法。对鼻咽癌的早期诊断有一定的特异性。
Objective To investigate the diagnostic value of MRI for nasopharyngeal carcinoma. Methods The MRI findings of 45 cases of pathologically confirmed nasopharyngeal carcinoma were analyzed. The nasopharyngeal MRI scan was performed using Siemens Impact-type superconducting magnetic resonance imaging. Results Into the nasopharyngeal cavity, the tumor had pharyngeal crypts flattened, disappeared or asymmetric on both sides, which were the most common manifestations. Thirty cases were infiltrated with deep tissues around the palate, in which the levator ani and the palatal velum were swollen and the fat gaps disappeared See; with skull base invasion in 14 cases, cavernous sinus invasion in 5 cases; 17 cases of lymph node metastasis, brain metastases in 3 cases, 3 cases of ball involvement. Conclusion MRI shows great value in the scope, mode and extent of nasopharyngeal carcinoma. It is an excellent diagnostic method. Early diagnosis of nasopharyngeal carcinoma has a certain specificity.