Posterior Circumflex Humeral Vein, Posterior View

Description

Arcing around the surgical neck of the humerus, the posterior circumflex humeral vein tracks posterior to the proximal shaft as it courses with the posterior circumflex humeral artery through the quadrangular space. Superior and medial, the scapula frames the glenohumeral region, while the proximal humerus sits lateral to the thoracic wall and inferior to the clavicle. Distally, the vascular bundle continues into the arm with the brachial vessels aligned along the humeral shaft, establishing a clear proximal to distal continuity between the shoulder and upper arm. Posterior positioning makes this vessel clinically relevant because it lies in the same corridor as the axillary nerve, a pairing that becomes central in posterior shoulder dislocation and in fractures at the surgical neck where neurovascular injury can be underestimated. A clean posterior perspective also clarifies how the circumflex vessels wrap from medial to lateral around bone, an orientation that matters when placing a posterior portal for shoulder arthroscopy or working near the posterior deltoid during open approaches. Depth and adjacency are the message. It helps you teach the quadrangular space without hand-waving. Common use cases include gross anatomy labs covering the axilla and shoulder, surgical education modules on posterior approaches to the glenohumeral joint, and textbook figures discussing vascular injury patterns in proximal humerus fractures and dislocation. It also fits radiology teaching when correlating CT angiography or MR angiography with expected circumflex vessel location relative to the humeral neck. Anatomical accuracy verified by SciePro's Medical Advisory Board.