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Location of emotional corticobulbar tract in the internal capsule
Journal of the Neurological Sciences ( IF 4.4 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.jns.2020.117228
Shigeki Kameyama , Hiroshi Masuda , Hiroshi Shirozu

Emotional facial paresis (EFP) is a rare neurological symptom with intact volitional facial movement. The exact location of emotional corticobulbar tract remains unclear. EFP was frequently recognized following the surgery of stereotactic radiofrequency thermocoagulation for hypothalamic hamartoma in 84.5% of 58 patients. To examine our hypothesis that EFP might be caused by stereotactic trajectories passing through an area including the internal capsule (IC), topographical locations of trajectories were analyzed and compared between the EFP-positive group (n = 41) and the EFP-negative group (n = 8). In the EFP-positive group, multiple (2 to 5) trajectories focused within the genu of the IC in 31 (75.6%) cases, whereas a single trajectory passed through the genu in 8 (19.5%) cases. In the EFP-negative group, 6 (75.0%) of 8 patients had a single trajectory and only one patient had two trajectories passing through the genu of the IC. The ratio between multiple trajectories and a single trajectory relevant to the genu differed significantly between two groups (p < 0.01). The multiple trajectories focusing in the genu have high risks of EFP, whereas a single trajectory seemed to incidentally cause EFP. The results proved our hypothesis and provided a high probability that the emotional corticobulbar tract passes through the genu rather than anterior or posterior limbs of the IC. The location of the emotional corticobulbar tract is in the genu of the IC.

中文翻译:

情绪皮质延髓束在内囊中的位置

情绪性面部麻痹 (EFP) 是一种罕见的神经系统症状,具有完整的意志面部运动。情绪皮质延髓束的确切位置仍不清楚。在 58 名患者中,84.5% 的患者在立体定向射频热凝术治疗下丘脑错构瘤后经常发现 EFP。为了检验我们的假设,即 EFP 可能是由穿过包括内囊 (IC) 在内的区域的立体定向轨迹引起的,对 EFP 阳性组 (n = 41) 和 EFP 阴性组之间的轨迹的地形位置进行了分析和比较。 n = 8)。在 EFP 阳性组中,31 例 (75.6%) 病例中多条(2 到 5 条)轨迹集中在 IC 的膝内,而在 8 例(19.5%)病例中,一条轨迹穿过膝部。在 EFP 阴性组中,6 (75. 0%) 的 8 名患者具有单一轨迹,并且只有一名患者具有通过 IC 膝部的两条轨迹。与膝相关的多个轨迹和单个轨迹之间的比率在两组之间显着不同(p < 0.01)。集中在膝部的多个轨迹具有较高的 EFP 风险,而单个轨迹似乎偶然导致 EFP。结果证明了我们的假设,并提供了高概率的情绪皮质球束穿过膝部而不是 IC 的前肢或后肢。情绪皮质延髓束的位置在 IC 的膝部。与膝相关的多个轨迹和单个轨迹之间的比率在两组之间显着不同(p < 0.01)。集中在膝部的多个轨迹具有较高的 EFP 风险,而单个轨迹似乎偶然导致 EFP。结果证明了我们的假设,并提供了高概率的情绪皮质球束穿过膝部而不是 IC 的前肢或后肢。情绪皮质延髓束的位置在 IC 的膝部。与膝相关的多个轨迹和单个轨迹之间的比率在两组之间显着不同(p < 0.01)。集中在膝部的多个轨迹具有较高的 EFP 风险,而单个轨迹似乎偶然导致 EFP。结果证明了我们的假设,并提供了高概率的情绪皮质球束穿过膝部而不是 IC 的前肢或后肢。情绪皮质延髓束的位置在 IC 的膝部。结果证明了我们的假设,并提供了高概率的情绪皮质球束穿过膝部而不是 IC 的前肢或后肢。情绪皮质延髓束的位置在 IC 的膝部。结果证明了我们的假设,并提供了高概率的情绪皮质球束穿过膝部而不是 IC 的前肢或后肢。情绪皮质延髓束的位置在 IC 的膝部。
更新日期:2021-01-01
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