Figure 20b. Arthroscopically proved delamination-type tear of subscapularis tendon with extremely degenerative and frayed long head of biceps brachii tendon subluxated into y-shaped split. (a) Transverse and (b) coronal T1-weighted MR arthrographic images (700/10) obtained with fat saturation after intraarticular administration of dilute gadolinium compound show split subscapularis tendon (*) with subluxated long head of biceps brachii tendon (black arrow). White arrow = bicipital groove.