A tendon is a type of body tissue that connects muscle to bone. If a tendon becomes inflamed — painful and swollen — the condition is called tendonitis. In your hands, there are so-called extensor ...
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 ...