McCarron M O, Bone I
Department of Medicine, Duke University Medical Center, Durham, NC, USA.
Cephalalgia. 1999 Mar;19(2):115-7. doi: 10.1046/j.1468-2982.1999.019002115.x.
Paroxysmal pain in the form of glossopharyngeal neuralgia is less frequent and less well understood than that of trigeminal neuralgia. Diagnostic confusion can arise especially when both conditions occur in the one patient. We report a patient with a 20-year history of left-sided glossopharyngeal neuralgia with trigger zones in both the trigeminal and glossopharyngeal dermatomal distributions. Magnetic resonance imaging revealed a single T2-weighted hyperintense signal in the left pons with no other abnormality. It is postulated that ephaptic transmission between central pain fibers and the trigeminal or glossopharyngeal fibers, which both enter the spinal trigeminal tract, resulted, respectively, in conventional and "referred" glossopharyngeal neuralgia.
以舌咽神经痛形式出现的阵发性疼痛比三叉神经痛更为少见，人们对其了解也较少。尤其是当这两种病症在同一患者身上同时出现时，可能会引发诊断混淆。我们报告了一位有20年左侧舌咽神经痛病史的患者，其触发区位于三叉神经和舌咽神经的皮节分布区域。磁共振成像显示左侧脑桥有一个单一的T2加权高信号，无其他异常。据推测，进入三叉神经脊束的中枢痛觉纤维与三叉神经或舌咽神经纤维之间的ephaptic传递分别导致了传统的和“牵涉性”舌咽神经痛。
