Among the variations of pectoral muscles, this case appears to be unique in the literature. This was a case of an accessory pectoral muscle which was located between pectoralis major and pectoralis minor muscles, which was discovered during a routine anatomy dissection. The accessory muscle originated from 6(th) and 7(th) ribs at costo-chondral junction, which travelled supero-laterally and inserted by fusing with fibres of pectoralis minor. This unusual muscle holds importance for surgeons while they perform dissectomies, in avoiding complications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3809658 | PMC |
| http://dx.doi.org/10.7860/JCDR/2013/6033.3381 | DOI Listing |
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