European Journal of Anatomy

Official Journal of The Spanish Society of Anatomy
/> Cover Volume 12 - Number 3
Eur J Anat, 12 (3): 169-173 (2008)

Axillary arch: A rare variation

Khan M.M., Darwish H.H., Zaher W.A.

Department of Anatomy, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia

ABSTRACT The axillary arch is a muscle slip varying from 7 to 10 cm in length and 5 to 15 mm in breadth. It occasionally arises from the edge of the latissimus dorsi, at about the middle of the posterior fold of the axilla and crosses the axilla in front of the axillary vessels and nerves to join the under-surface of the tendon of the pectoralis major, the coracobrachialis, or the fascia over the biceps. During the dissection of a human cadaver, an unusual muscle band was encountered and identified as an axillary arch on the right side of a 60-year old male cadaver. The anomalous muscle band was an extension from the lateral border of the latissimus dorsi muscle. The muscle measured 6 cm in length, 2 cm wide and 2 mm thick. Since this muscle may be the cause of different pathologies, we were prompted to discuss the clinical relevance of our findings.

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European Journal of anatomy
ISSN 2340-311X (Online)