A fan-shaped axillopectoral muscle: an unusual variant of the axillary arch.

Ang, Chay-You; Ng, Siew-Weng; Tan, Bien-Keem · Ann Plast Surg · 2009

case_report · Level V

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Abstract

The axillary arch is a vestigial muscle in the axilla, which originates from the latissimus dorsi and inserts into the pectoralis major tendon. The aim of this article is to describe a fan-shaped variant of the axillary arch and its clinical implications. We present a patient who underwent an axillary node dissection during which, a fan-shaped axillopectoral muscle measuring 8 cm by 6 cm was encountered. It was disinserted to provide exposure of the axilla.

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