For citation purposes: Solanke K, Pokhrel R, Bhatnagar R. Peculiar formation of medial cord and unusual course of fifth cervical nerve root: A case of bilateral variation in brachial plexus. OA Case Reports 2014 Sep 22;3(8):71.

Case report

 
Anatomy

Peculiar formation of medial cord and unusual course of fifth cervical nerve root: A case of bilateral variation in brachial plexus.

K Solanke, R Pokhrel, R Bhatnagar
 

Authors affiliations

(1) D.Y.PATIL MEDICAL COLLEGE,PIMPRI,PUNE,MAHARASHTRA,INDIA

(2) COLLEGE OF MEDICINE, NEPAL ARMY INSTITUTE OF HEALTH SCIENCES,NEPAL

(3) ANDAMAN AND NICOBAR ISLANDS INSTITUTE OF MEDICAL SCIENCES,PORT BLAIR,INDIA

* Corresponding author Email: drkirtipawarsolanke@gmail.com

Abstract

Introduction

Brachial plexus is a network of nerve fibers formed by ventral rami of fifth to eighth cervical nerve and first thoracic nerve. Because of the extensive branching occurring in brachial plexus, variations are very common in this structure.

Methods

We report a case of bilateral variations in 68 years old male cadaver. Result-In 68 year male cadaver fifth cervical nerve root, instead of passing between scalenus anterior and medius was piercing the scalenus anterior, before joining the sixth cervical root to form upper trunk. Seventh cervical nerve root was also contributing to medial cord.

Discussion

Similar anomalies have been reported by various workers in the past.

Conclusion

This type of variation is fairly common and has clinical and surgical significance especially for regional anesthetic blocks, thoracic outlet syndrome, surgeries in this region and interpretation of radiological images.

Licensee OA Publishing London 2014. Creative Commons Attribution License (CC-BY)
Keywords