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Glossopharyngeal neuralgia: MR findings
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 3
- DOI:
- 10.3760/j.issn:1005-1201.2007.03.004
- Key Word:
- 舌咽神经疾病;神经痛;磁共振成像
Abstract： 目的 探讨MRI对舌咽神经和周围血管的显示能力以及对舌咽神经痛诊断的意义.方法 回顾性分析12例舌咽神经痛患者MR征象,与手术所见和术后症状改善对照.结果 10例舌咽神经根部受动脉血管压迫或与之接触,其中9例MRI上有相应征象,1例MRI未能显示责任血管.1例舌咽神经根部受静脉压迫,MRI未能显示责任血管.1例手术发现舌咽神经周围有明显的蛛网膜粘连,MRI上无相应征象.MRI发现症状侧舌咽神经受小脑后下动脉或椎动脉压迫或与之接触者分别为8和1例;除1例手术确定小脑前下动脉为责任血管外,其他手术与MRI所见一致;MRI未发现症状侧舌咽神经受血管压迫或与之接触征象者3例,术中1例见到未能确定来源的小动脉压迫舌咽神经根部,1例小静脉压迫舌咽神经根部,1例舌咽神经周围有明显的蛛网膜粘连.并发同侧三叉神经痛的8例,6例症状侧MRI发现三叉神经根部受小脑上动脉压迫或与之接触,其中5例手术与MRI所见一致,1例手术未能确定责任小动脉来源;MRI未发现症状侧三叉神经受血管压迫或与之接触征象的2例,术中1例见脑干引流静脉压迫三叉神经根部,1例未见有血管压迫.行舌咽神经根和三叉神经根微血管减压术后,所有患者疼痛消失.结论 MRI能显示舌咽神经与毗邻动脉血管之间的关系,对舌咽神经痛病因分析和治疗方法选择有重要的意义.
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