Location
Moultrie, GA
Start Date
7-5-2025 1:00 PM
End Date
7-5-2025 4:00 PM
Description
The axillary artery is a significant vascular structure in human anatomy that supplies oxygenated blood to the upper limb. Classically, the artery gives rise to six major branches that are typically divided into three parts based on their relationship to the pectoralis minor muscle. Even though variations in its branching pattern are well-documented, certain deviations are underrepresented in anatomical research but hold clinical significance. Awareness of these anomalies is essential for physicians in order to avoid vascular complications during procedures. During a cadaveric dissection of a 96-year-old female, we witnessed an uncommon variation in the axillary artery’s branching pattern. The subscapular artery gave rise to both the posterior humeral circumflex artery and the lateral thoracic artery. This arrangement is atypical in comparison to the standard anatomical relationship. This variation has significant clinical implications, particularly in surgical procedures involving the axillary region and regional anesthesia techniques. Unusual origins of the posterior humeral circumflex and lateral thoracic arteries may increase the risk of unintentional vascular injury during various procedures. Understanding these variations enhances postoperative planning and procedural safety. Given the potential surgical and clinical significance of this variation, additional research is warranted to explore its frequency and impact.
Embargo Period
6-3-2025
Included in
Unusual Branching of the Axillary Artery: A Case Report on Subscapular Artery Variation
Moultrie, GA
The axillary artery is a significant vascular structure in human anatomy that supplies oxygenated blood to the upper limb. Classically, the artery gives rise to six major branches that are typically divided into three parts based on their relationship to the pectoralis minor muscle. Even though variations in its branching pattern are well-documented, certain deviations are underrepresented in anatomical research but hold clinical significance. Awareness of these anomalies is essential for physicians in order to avoid vascular complications during procedures. During a cadaveric dissection of a 96-year-old female, we witnessed an uncommon variation in the axillary artery’s branching pattern. The subscapular artery gave rise to both the posterior humeral circumflex artery and the lateral thoracic artery. This arrangement is atypical in comparison to the standard anatomical relationship. This variation has significant clinical implications, particularly in surgical procedures involving the axillary region and regional anesthesia techniques. Unusual origins of the posterior humeral circumflex and lateral thoracic arteries may increase the risk of unintentional vascular injury during various procedures. Understanding these variations enhances postoperative planning and procedural safety. Given the potential surgical and clinical significance of this variation, additional research is warranted to explore its frequency and impact.