Extensor carpi ulnaris muscle seen on the ulnar side of both of this golfer's wrists. The ECU tendon passes through a fibro-osseous tunnel (the sixth extensor compartment) as it leaves the forearm, ...

De Quervain's disease, a form of stenosing tenosynovitis, predominantly affects the tendons within the first dorsal compartment of the wrist, namely the abductor pollicis longus and extensor pollicis ...

De Queruain's tenosynovitis is a disorder characterized by pain on the radial (thumb) side of the wrist, impairment of thumb function, and thickening of the ligamentous structure covering the tendons ...