Bratisl Lek Listy. 2021;122(4):242-247. doi: 10.4149/BLL_2021_039.
The aim of this paper was to point out the intradural cranial nerve roots variations in their localization and number to establish the incidence and clinical importance of the cranial nerve root variations.
The anatomical study was performed on 120 sides in 60 cadavers. There were 51 male cadavers with the mean age 43.3 and 9 female cadavers with the mean age of 39.5 years.
Abducens nerve variations were observed in 48 cases (80 %). They were more frequently on the left side, in 25 cases (41.66 %). Duplicated abducens nerve was observed in 25 cases (41.66 %). Double and triple abducens nerve variations were also observed.
Cranial nerve variations are rare, but variations of abducens nerve and atypical exit of the hypoglossal nerve from the fossa cranium posterior is not a rare variation. Knowledge of this variation may be important to various fields of medicine (Tab. 3, Fig. 8, Ref. 34).
本文旨在指出颅神经根在定位和数量上的变异，以确定颅神经根变异的发生率和临床意义。
对 60 具尸体的 120 侧进行解剖学研究。其中 51 具男性尸体的平均年龄为 43.3 岁，9 具女性尸体的平均年龄为 39.5 岁。
观察到展神经变异 48 例（80%）。左侧更为常见，25 例（41.66%）。观察到展神经重复 25 例（41.66%）。也观察到双和三展神经变异。
颅神经变异罕见，但展神经变异和舌下神经从颅后窝异常穿出并不罕见。了解这种变异对于医学的各个领域都很重要（表 3，图 8，参考文献 34）。
