Accessory Pectoralis Muscle Intervening Between Pectoralis Major and Minor Muscles - A Case Report

Patil, Jyothsna and Kumar, Naveen and Swamy, Ravindra S and Somayaji, SN and Nayak, Satheesha B and Rao, Mohandas KG (2014) Accessory Pectoralis Muscle Intervening Between Pectoralis Major and Minor Muscles - A Case Report. International Journal of Health Sciences and Research, 4 (2). pp. 198-201. ISSN 2249-9571

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Abstract

Pectoral region is known to show the presence of accessory muscles. Functionally these muscles are regarded as insignificant, but their presence sometime causes confusions in the interpretation of radiologic procedures. One such anomalous accessory pectoralis muscle we would like to report here. This muscle was found between pectoralis major and minor muscles of left pectoral region, separated from them by a thin layer of fascia. It originated from the outer surface of left 4th rib and upper aspect of its costochondral junction. It fused with the deeper fibers of pectoralis major muscle near its insertion. Existence of such accessory muscles is rarely noted during diagnostic imaging techniques, prior knowledge of its occurrence is important for surgeons to achieve suitable dissection planes during surgery of the chest wall.

Item Type: Article
Uncontrolled Keywords: Accessory pectoralis; sternalis; pectoralis quartus; pectoralis intermedius.
Subjects: Medicine > MMMC Manipal > Anatomy
Depositing User: KMC Manipal
Date Deposited: 25 Feb 2014 06:28
Last Modified: 25 Feb 2014 06:28
URI: http://eprints.manipal.edu/id/eprint/138945

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