**4. Hand/wrist**

*Tendons*

neous tendon with focal hypoechoic areas.

**3.4 Distal biceps tendon**

signal intensity on T1WI and T2WI. Abnormal fluid signal intensity may be seen traversing the tendon fibers in partial tendon tears, most common in the extensor carpi radialis brevis tendon [12] (**Figure 2**). If there is a fluid signal intensity gap with discontinuity of the tendon fibers, a full thickness tear is present. Avulsion injuries may be present when there is associated bone marrow edema at the tendinous insertion site. The US evaluation of lateral epicondylitis shows a heteroge-

The distal biceps brachii tendon is located at the anterior elbow compartment, coursing through the antecubital fossa with its distal insertion at the radial bicipital tuberosity. Its superficial fibers form the lacertus fibrosis which course medially to form the distal portion of the tendon. Pathology of the distal biceps tendons is most common in people who perform heavy weightlifting, with increased risk in those who use anabolic steroids [12]. A distal biceps tendon tear results in retraction of the myotendinous junction, clinically known as a Popeye's sign or mass in the proximal arm. This is seen as complete discontinuity of the tendon fibers, best appreciated in axial and sagittal planes. In order to be able

*Proton density fat saturated coronal image of the elbow shows fluid signal at the insertion of the common* 

**20**

**Figure 2.**

*extensor tendon consistent with a tendon tear.*
