A Rare Variation of the Axillary Nerve Formed as Direct Branch of the Upper Trunk
The brachial plexus has a complex anatomical structure from its origin in the neck and through its course in the axillary region. Knowledge of variations of the brachial plexus has important clinical applications especially in relation to trauma and surgical procedures of upper limb. The present s...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2016-08-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/8255/20048_CE[Ra1]_F(GH)_PF1(ROAK)_PFA(NC_AK)_PF2(PAG).pdf |
| Summary: | The brachial plexus has a complex anatomical structure from its origin in the neck and through its course in the axillary region. Knowledge
of variations of the brachial plexus has important clinical applications especially in relation to trauma and surgical procedures of upper
limb. The present study has reported a rare variation of the brachial plexus where the “axillary nerve” arising as a direct branch from the
upper trunk instead from the posterior cord. Once the “axillary nerve” was given off, the remaining superior trunk had joined with the
anterior division of middle trunk in the formation of the lateral cord. The posterior cord was formed by the union of posterior divisions
of the middle and inferior trunks. The “axillary nerve” has given off braches to subscapularis, latissimus dorsi, deltoid and teres minor
muscles while having given a “communicating branch” for the posterior cord. The current report indicates an anatomical variation not
documented so far which may help in planning safe surgical procedures in this region and to explain unusual resulting complications. |
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| ISSN: | 2249-782X 0973-709X |