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Anomalous insertional slip of latissimus dorsi muscle: arcus axillaris

Variation d'insertion du muscle grand dorsal : l'arc axillaire

  • Anatomic Variations
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Summary

An anomalous muscular slip arising from the latissimus dorsi m. was encountered on the right side of a male cadaver during a dissection in our laboratory. The slip left the muscular part of the latissimus dorsi 8 cm distal to its insertion, coursed superolaterally anterior to the neurovascular structures and was inserted into the coracobrachialis fascia. The morphology of the additional slip and its possible clinical implications are discussed.

Résumé

Cette variation, se présentant sous la forme d'un tendon supplémentaire détaché du muscle grand dorsal, a été retrouvée sur le côté droit d'un cadavre de sexe masculin au cours d'une dissection en laboratoire. Cette insertion se détachait de la partie charnue du muscle grand dorsal, à 8 cm de son insertion distale, se dirigeait en direction supérolatérale et antérieure par rapport aux structures neuro-vasculaires, et se terminait sur le fascia coraco-brachial. La morphologie de ce tendon accessoire additionnel et les implications cliniques possibles sont discutées.

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Kalaycioglu, A., Gümüsalan, Y. & Ozan, H. Anomalous insertional slip of latissimus dorsi muscle: arcus axillaris. Surg Radiol Anat 20, 73–75 (1998). https://doi.org/10.1007/BF01628121

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  • DOI: https://doi.org/10.1007/BF01628121

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