Normal Distal Biceps Tendon and Brachialis

Left Image: Distal Biceps Tendon - Longitudinal sonogram of the normal distal biceps tendon (red shade) and cortex of the radius (blue line). The distal insertion site is out of plane and seen on the images below.

Right Image: Corresponding longitudinal transducer position technique.
Distal Biceps Tendon - Additional longitudinal sonograms show the insertion of the distal biceps tendon (red shade) on the radial tuberosity (blue line/arrow).

Left Image: Brachialis muscle - Longitudinal sonogram show the brachialis muscle (yellow shade) extending over the antecubital fossa. Note the trochlea (blue line) of the humerus and the coronoid process (blue line/arrow) of the olecranon.

Right Image: Corresponding longitudinal transducer position technique.