Ultrasound (US) image of a complete tear of the pectoralis major muscle at the musculotendinous junction. The muscle fibers (left white arrow) have retracted medially away from the tendon (right white arrow) and are separated by a subacute hematoma (star).
Pectoralis major: pectoralis major muscle (left) and tendon (right); Deltoid: deltoid muscle; Humerus: 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.
