Figure 21. Biceps tendon pitfall. On an oblique US image of the biceps tendon, the tendon may mimic the appearance of a torn and retracted supraspinatus tendon (arrows). Compare this image with Figure 16b, in which the hypoechoic interface between the anterior edge of the supraspinatus and biceps tendons may be mistaken for a longitudinal tear. The biceps tendon is, as a rule, more echogenic than the rotator cuff tendons (Craig J, oral communication, 1997).