Department of Anatomy, School of Medicine, National and Kapodistrian University of Athens, Thessaloniki, Greece.
Department of Anatomy and Surgical Anatomy, School of Medicine, National and Kapodistrian University of Athens, Greece, Athens, Greece.
Folia Morphol (Warsz). 2020;79(2):402-406. doi: 10.5603/FM.a2019.0081. Epub 2019 Jul 19.
The brachial plexus presents a great variability in formation, division and branching pattern. Its variants are of immense importance during axillary and arm surgery and nerve blockade. The current case highlights a unilateral atypical formation of brachial plexus, the so called prefix, in which the C4 root contributed a large branch to the superior trunk and further anastomosis with the inferior trunk. Thus, the prefix or high brachial plexus consisted of a superior and inferior trunk and one anterior cord. Coexisting neural and arterial variations are also discussed in relation to the data literature.
臂丛在形成、分支和分支模式上表现出极大的变异性。其变体在腋窝和手臂手术以及神经阻滞中具有重要意义。目前的病例突出了臂丛的单侧非典型形成，即所谓的前缀，其中 C4 根为上干贡献了一个大分支，并进一步与下干吻合。因此，前缀或高臂丛由一个上干、一个下干和一个前束组成。还讨论了并存的神经和动脉变异与数据文献的关系。
