Anatomical Variations of the Pectoralis Major Muscle: Notes on Their Impact on Pectoral Nerve Innervation Patterns and Discussion on Their Clinical Relevance

<div>Deviation from the typical distribution of branches of the lateral pectoral nerve observed on the specimen with a complete fusion between the pectoralis major and deltoid muscles. (a) Small sub-branches of the lateral pectoral nerve (LPN) joined the clavicular portion of the deltoid muscle (DM). (b) Schematic representation of the extended territory of the lateral pectoral nerve. AN: axillary nerve; MPN: medial pectoral nerve.</div>

BioMed Research International

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Figure 8

Figure 8: Anatomical Variations of the Pectoralis Major Muscle: Notes on Their Impact on Pectoral Nerve Innervation Patterns and Discussion on Their Clinical Relevance 

Figure 8 | Anatomical Variations of the Pectoralis Major Muscle: Notes on Their Impact on Pectoral Nerve Innervation Patterns and Discussion on Their Clinical Relevance 