Unusual communications of the brachial plexus

What is it about?

The present case describes the innervation of the pectoral muscles by a nerve trunk arising from the ansa pectoralis- formed by the fusion of medial and lateral pectoral nerves.

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Why is it important?

This report highlights the implications of surgical exploration of the axilla and arm which may damage important nerves especially in the plane between the pectoral muscles lead to their denervation.