Anomalous Origin and Course of the Posterior Circumflex Humeral Artery: Clinical Interest in Shoulder Arthroscopy and Open Procedures

The posterior circumflex humeral artery usually cross the quadrilateral space with the axillary nerve but there are variations as this case, that artery runs down this space. We study this artery and its relations in order to advice to injury it during surgical and invasive procedures such as shoulder arthroscopy and also prevent vascular repercussions. An embryological and clinical explanation is also considered.