Banerjee Aritra, Kumari Chiman, Jhajhria Saroj Kaler
Junior Resident, Department of Anatomy, All India Institute of Medical Sciences , New Delhi, India .
Senior Resident, Department of Anatomy, All India Institute of Medical Sciences , New Delhi, India .
J Clin Diagn Res. 2017 Feb;11(2):AD03-AD04. doi: 10.7860/JCDR/2017/21605.9245. Epub 2017 Feb 1.
Anatomical variation of the branching pattern of axillary artery is very common. The knowledge of this variation is often useful during different surgical and interventional procedures. Variations include typically of Lateral Thoracic Artery (LTA) and Posterior Circumflex Humeral Artery (PCHA). The present case has been reported to document the variation of LTA and PCHA. The axilla of a 65-year-old embalmed female cadaver was routinely dissected for educational purpose in the Department of Anatomy, AIIMS, New Delhi, India. Cunnighams Manual of Dissection was followed during the whole dissection procedure. We found that the third part of axillary artery gave rise to a common trunk which divided into PCHA and LTA. The PCHA curved backwards around the humeral neck and made anastomosis with the anterior circumflex humeral artery. The LTA supplied serratus anterior and the pectoral muscles and made anastomosis with intercostal arteries. The axillary nerve accompanied PCHA while the thoracodorsal nerve accompanied LTA. The rare anatomical variation of the branching pattern of axillary artery is assumed to be helpful in the surgical procedures and various therapeutic interventions of the upper limb.
腋动脉分支模式的解剖变异非常常见。了解这种变异在不同的外科手术和介入操作中通常很有用。变异通常包括胸外侧动脉（LTA）和旋肱后动脉（PCHA）。报告本病例以记录LTA和PCHA的变异情况。在印度新德里全印医学科学研究所解剖学系，为教学目的对一具65岁经防腐处理的女性尸体的腋窝进行了常规解剖。整个解剖过程遵循《坎宁安解剖学手册》。我们发现腋动脉的第三部分发出一个共同干，该共同干分为PCHA和LTA。PCHA绕肱骨颈向后弯曲，并与旋肱前动脉形成吻合。LTA供应前锯肌和胸肌，并与肋间动脉形成吻合。腋神经伴行于PCHA，而胸背神经伴行于LTA。腋动脉分支模式这种罕见的解剖变异被认为有助于上肢的外科手术和各种治疗干预。
