Ultrasound (US) image of posterior glenohumeral joint.
Deltoid: deltoid muscle; IS: infraspinatus; White star: glenoid labrum; Glenoid: glenoid of the scapula; Arrows: articular cartilage of the humeral head (anechoic structure); Humeral head: head of the humerus bone. Left: medial; Right: lateral; Bottom of screen: deep; Top of screen: superficial.
Courtesy of Jonathan Finnoff, DO. Used with permission of Mayo Foundation for Medical Education and Research. All rights reserved.
