Short-axis ultrasound (US) image of the anterior margin of the mid (intra-articular) portion of the supraspinatus tendon (SS). The astute sonologist will recognize that this image is intra-articular due to the presence of the anechoic articular cartilage on the surface of the humeral head.
Deltoid: deltoid muscle; Humeral head; head of the humerus bone; Star: biceps tendon. Left: posterior; Right: anterior; 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.
