Figure 5b. Pectoralis major tendon tear in a 37-year-old man who presented with pain after attempting to catch a heavy object. (a) Clinical photograph shows a palpable defect (arrow) in the anterior wall of the left axilla. (b) Transverse extended-field-of-view 12-5-MHz US image reveals hypoechoic fluid that fills the bed of the ruptured pectoralis major tendon (arrowheads). Note the medial retraction of the belly of the pectoralis major muscle (PM) and the anterior displacement of the myotendinous junction of the biceps tendon (B), which appears to be surrounded by fluid. D = deltoid muscle, H = humerus, Pm = pectoralis minor muscle.