De Quervain tenosynovitis, named after Swiss surgeon Fritz de Quervain, is a condition that involves tendon entrapment affecting the first dorsal compartment of the wrist. With this condition, thickening and myxoid degeneration of the tendon sheaths around the abductor pollicis longus and extensor pollicis brevis develop where the tendons pass in through the fibro-osseous tunnel located along the radial styloid at the distal wrist.[1] Pain is exacerbated by thumb movement and radial and uln...
