de Quervain's tenosynovitis
In case of pain directly over the radial styloid process, there is stenosing tenosynovitis in the first compartment (de Quervain's disease).
Finkelstein test
- Fist with thumb flexed into the palm
- Ulnarly deviates the hand and stretches M. abductor pollicis longus and M. extensor pollicis brevis