tubercle of trapezium

tu·ber·cle of tra·pe·zi·um

(tū'bĕr-kĕl tră-pē'zē-ŭm)
A prominent ridge on the trapezium forming the lateral border of the groove in which runs the tendon of the flexor carpi radialis.
References in periodicals archive ?
9) Typical areas include the scaphoid, the tubercle of trapezium (radial-sided pain), the hook of the hamate (ulnar/volarsided pain) and the distal radius.