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目的：探讨鼻咽癌侵犯海绵窦的ＭＲＩ特点。材料与方法：搜集病理确诊的鼻咽癌伴有前组颅神经损害为主要临床症状的ＭＲＩ资料３３例。采用ＥｌｓｃｉｎｔＧｙｒｅｘⅤ型磁共振仪，０．５Ｔ，超导型。ＳＥ，横断位，Ｔ１ＷＩ（４４０／２５ｍｓ），ＰＷＩ（２２００／２０ｍｓ），Ｔ２ＷＩ（２２００／９０ｍｓ），计３３例；其中１７例加扫冠状位，Ｔ１ＷＩ（４４０／２５ｍｓ）；１０例进行了增强ＭＲＩ扫描。结果：（１）两侧海绵窦不对称，左１７例，右１１例，双侧５例；（２）受累海绵窦呈局限或弥漫性增厚２３例；（３）颈内动脉受累１３例，颅神经受累３２例，视神经受累７例；（４）海绵窦异常强化１０例，脑膜异常强化５例；（５）骨质破坏：蝶窦１４例，筛窦７例，眶尖与蝶嵴５例，颅底２７例；（６）鼻咽部原发病灶３３例。结论：ＭＲＩ可精确显示鼻咽癌侵犯海绵窦的部位、途径、范围和程度，是优良诊断方法。
Objective: To investigate the MRI features of nasopharyngeal carcinoma invading the cavernous sinus. MATERIALS AND METHODS: 33 cases of pathologically confirmed nasopharyngeal carcinoma with cranial nerve damage in the anterior group were selected as the main clinical symptoms. ElscintGyrex V-type magnetic resonance instrument, 0.5T, superconducting type. SE, transverse position, T1WI (440 / 25ms), PWI (2200 / 20ms) and T2WI (2200 / 90ms) MRI scan. Results: (1) asymmetric cavernous sinus on both sides of the left 17 cases, right in 11 cases, bilateral in 5 cases; (2) involvement of cavernous sinus was limited or diffuse thickening of 23 cases; (3) 13 cases of internal carotid artery involvement , Cranial nerve involvement in 32 cases, optic nerve involvement in 7 cases; (4) cavernous sinus anomaly in 10 cases, meningeal anomaly in 5 cases; (5) bone destruction: sphenoid sinus in 14 cases, ethmoid sinus in 7 cases, 5 cases, 27 cases of skull base; (6) 33 cases of primary nasopharyngeal lesions. Conclusion: MRI can accurately show the site, path, extent and extent of nasopharyngeal carcinoma invading the cavernous sinus, and is an excellent diagnostic method.