Jornal Vascular Brasileiro
https://www.jvascbras.org/article/doi/10.1590/1677-5449.20250188
Jornal Vascular Brasileiro
Relato de Caso

Unilateral unusual branching pattern of the axillary artery: a case report

Padrão de ramificação unilateral incomum da artéria axilar: relato de caso

Mamta Bishnoi; Monica Baxla; Swati Yadav; Vidhu Dhawan

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Abstract

The axillary artery is the continuation of the subclavian artery in the upper limb on both the sides of the human body. The axillary artery gives off six branches along with two terminal branches, but manifests various branching patterns, knowledge of which is useful for clinicians. A formalin fixed donated cadaver was used and the axillary region was dissected according to Cunningham’s Manual of Practical Anatomy. This case report describes a unilateral common trunk arising from the second part of the axillary artery, giving off lateral thoracic, posterior circumflex humeral, circumflex scapular, and thoracodorsal arteries. The present study also presents an embryological interpretation of the current variation. These variations are accidental findings discovered during dissection, but knowledge of them is useful for clinicians performing any surgical procedures in the axillary region.

Keywords

axillary artery; axillary region; anatomical variation

Resumo

A artéria axilar é a continuação da artéria subclávia no membro superior, em ambos os lados do corpo humano. A artéria axilar dá origem a seis ramos, além de dois ramos terminais, mas apresenta padrões de ramificação variados, cujo conhecimento é útil para os clínicos. Utilizou-se um cadáver doado, fixado em formalina, e a região axilar foi dissecada de acordo com o Cunningham’s Manual of Practical Anatomy. Este relato de caso descreve um tronco comum unilateral originado da segunda parte da artéria axilar, que, por sua vez, dá origem às artérias torácica lateral, circunflexa umeral posterior, circunflexa da escápula e toracodorsal. O presente estudo também apresenta uma interpretação embriológica da variação observada. Essas variações são achados incidentais descobertos durante a dissecção, mas o conhecimento sobre elas é útil para médicos que realizam procedimentos cirúrgicos na região axilar.

Palavras-chave

artéria axilar; região axilar; variação anatômica

Referências

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Submetido em:
05/12/2025

Aceito em:
05/06/2026

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